Substantive Due Process Principles

The idea of substantive due process is pretty interesting. It’s basically about making sure the government doesn’t just do whatever it wants, especially when it comes to our basic freedoms. Think of it as a check on power, ensuring that laws themselves are fair and not just the procedures used to enforce them. This concept helps protect us from laws that might be arbitrary or unfairly target individuals, even if they follow all the correct steps. It’s a key part of how our legal system tries to keep things balanced.

Key Takeaways

Substantive due process protects fundamental rights from unfair government actions, not just procedural fairness.
It ensures laws themselves are reasonable and not arbitrary, safeguarding individual liberties.
Judicial review plays a big role in determining if laws violate substantive due process.
Interpretive approaches like textualism and originalism shape how substantive due process is understood.
This doctrine limits government power, balancing it against individual freedoms.

Foundations Of Substantive Due Process Doctrine

Constitutional Law Overview

Constitutional law is the bedrock of our legal system, outlining how the government is structured and how it interacts with its citizens. It’s all about the big picture: who has power, what limits are on that power, and how individual rights are protected. Think of it as the rulebook for the entire country. It sets up the branches of government – legislative, executive, and judicial – and makes sure they don’t step on each other’s toes too much. This framework is designed to prevent any one group from becoming too powerful. It’s a pretty complex area, but understanding the basics is key to grasping how our society functions.

Foundations Of Constitutional Law

The whole idea of constitutional law rests on a few core principles. First, there’s the concept of constitutional supremacy, meaning the Constitution is the highest law of the land. Nothing can go against it. Then you have the separation of powers, dividing government jobs among different branches, and federalism, which splits power between the national government and the states. These aren’t just abstract ideas; they’re practical ways to distribute authority and prevent its abuse. The Constitution itself is the primary source, but its meaning has been shaped over time through interpretation and practice. It’s a living document, in a way, constantly being applied to new situations.

Sources Of Constitutional Law

Where does constitutional law actually come from? Well, it’s not just one thing. The most obvious source is the text of the Constitution itself, including all its amendments. But that’s just the start. Judicial precedent, meaning decisions made by courts over the years, plays a huge role in explaining what the Constitution means in practice. Think of Supreme Court rulings – they set binding interpretations. Then there are interpretive doctrines, which are different ways judges approach understanding the Constitution’s text and intent. These various sources all work together to form the body of constitutional law we have today. It’s a mix of written words and ongoing legal discussion, all aimed at defining the limits and powers within our government structure. The rule of law is built on several core principles, ensuring that laws are publicly known, applied equally, and enforced consistently, which is a key aspect of constitutional law.

Fundamental Rights Protected By Substantive Due Process

Substantive due process isn’t just about fair procedures; it’s also about protecting certain core liberties from government interference, even if the procedures themselves are sound. Think of it as a safeguard against laws that are fundamentally unfair or infringe upon deeply held rights, regardless of how they’re applied. The courts have recognized a variety of these rights over time, often drawing from the Bill of Rights and other established legal traditions.

Bill Of Rights

The Bill of Rights, the first ten amendments to the Constitution, is a primary source for many of the rights protected under substantive due process. These amendments were designed to limit the power of the federal government and protect individual freedoms. While some rights are explicitly stated, others have been interpreted by courts to fall under the umbrella of substantive due process.

Freedom Of Speech

Freedom of speech is a cornerstone of American democracy. It protects not only political speech but also artistic, commercial, and other forms of expression. The government generally cannot censor speech or punish individuals for their words, though there are some limitations, like incitement to violence or defamation. This protection is vital for a functioning society where ideas can be freely exchanged.

Freedom Of Religion

This protection has two main parts: the Establishment Clause, which prevents the government from establishing a religion, and the Free Exercise Clause, which allows individuals to practice their religion freely. Substantive due process ensures that the government doesn’t unduly burden religious practices or favor one religion over others. It’s a delicate balance, but it’s key to religious liberty.

Right To Privacy

While the word "privacy" doesn’t appear in the Constitution, the Supreme Court has recognized a right to privacy as implicit in several amendments, including those related to due process. This right protects individuals’ autonomy in making personal decisions about their bodies, families, and private lives. It covers areas like contraception, marriage, and intimate relationships. The recognition of this right has evolved significantly through various court cases.

The right to privacy, though not explicitly enumerated, is considered so basic that government intrusion into certain personal decisions is prohibited unless there’s a compelling reason. This protects individuals from unwarranted government oversight in their most personal affairs.

Here’s a look at some key aspects:

Reproductive Rights: Decisions regarding contraception and abortion have been central to privacy claims.
Marital Privacy: Protections extend to decisions made within marriage.
Family Relationships: The right to raise one’s children and maintain family connections is safeguarded.

These rights are not absolute and can be subject to government regulation under certain circumstances, but the bar for such regulation is typically high, often requiring a compelling government interest and narrowly tailored means to achieve it. Understanding these protections is key to appreciating the scope of individual liberty under the Constitution. The courts play a significant role in defining the boundaries of these rights, often through the process of judicial review. The government must follow fair procedures and respect legal rights, as outlined in amendments like the Fourth Amendment concerning search and seizure [92a0].

The Role Of Judicial Review In Substantive Due Process

Judicial review is the mechanism by which courts examine the actions of the legislative and executive branches to determine if they align with the Constitution. When it comes to substantive due process, this power is particularly significant. It allows courts to look beyond the procedures a government entity might follow and question the reasonableness and fairness of the law or government action itself.

Judicial Review

At its core, judicial review means courts can strike down laws or government actions that they find unconstitutional. This isn’t a power explicitly written into the Constitution in so many words, but it’s a cornerstone of how our legal system operates. For substantive due process, this means courts don’t just ask if you got a fair hearing; they ask if the government had a good enough reason to interfere with your fundamental rights in the first place. This ability to scrutinize the substance of laws, not just their form, is what gives substantive due process its teeth.

Constitutional Interpretation

How do courts decide if a law violates substantive due process? They have to interpret the Constitution. This isn’t always straightforward. Different judges and legal scholars might look at the same constitutional text and come to different conclusions about what it means for modern society.

Here are some common ways courts approach interpretation:

Textualism: Focusing on the plain meaning of the words in the Constitution as they were written.
Originalism: Trying to understand the original public meaning of the Constitution at the time it was adopted.
Living Constitution Theory: Viewing the Constitution as a dynamic document that should adapt to changing societal values and circumstances.

Each of these approaches can lead to different outcomes when a court is deciding whether a government action infringes upon a right protected by substantive due process.

Standards of Scrutiny

When a court reviews a law under substantive due process, it doesn’t treat all rights equally. The level of scrutiny applied depends on the nature of the right being affected.

Strict Scrutiny: This is the highest level. It applies when a law infringes on a fundamental right (like privacy or free speech) or involves a suspect classification. The government must show the law is narrowly tailored to achieve a compelling government interest. This is a very difficult standard for the government to meet.
Rational Basis Review: This is the lowest level. It applies to most economic and social regulations. The government only needs to show that the law is rationally related to a legitimate government interest. Most laws reviewed under this standard are upheld.

There’s also an intermediate level of scrutiny, but strict and rational basis are the most commonly discussed in the context of substantive due process. The choice of which standard to apply is a critical step in the judicial review process.

Substantive Due Process And Arbitrary Government Action

Substantive Due Process

Substantive due process is a legal principle that protects certain fundamental rights from government interference, even if the government is following fair procedures. It’s not just about how the government acts, but also about what the government can do. The idea is that some rights are so important that the government can’t infringe upon them, regardless of the process it uses. This doctrine acts as a safeguard against laws that are arbitrary or unreasonable, ensuring that government power doesn’t overstep its bounds into areas of personal liberty that are considered beyond its legitimate reach.

Rule Of Law

The rule of law is a bedrock principle that means everyone, including the government, is subject to and accountable under the law. It requires that laws be clear, public, stable, and applied equally. This principle is closely tied to substantive due process because it demands that government actions, especially those affecting individual rights, must have a legal basis and cannot be arbitrary or capricious. When government actions lack a rational connection to a legitimate government purpose, they can be seen as violating the rule of law and, by extension, substantive due process. This ensures a level of predictability and fairness in how laws are applied, preventing the government from acting on whims.

Legal Rights

Legal rights are entitlements that are recognized and protected by law. Substantive due process specifically focuses on protecting certain fundamental legal rights that are not explicitly listed in the Constitution but are considered essential to liberty. These can include rights related to marriage, family, and bodily integrity. The government cannot infringe upon these rights without a very strong justification. The courts play a significant role in identifying and defining these rights, often looking to the nation’s history and traditions to determine what is considered fundamental. Protecting these legal rights is a key function of substantive due process.

Fundamental Rights Protection: Safeguards liberties not explicitly enumerated but deeply rooted in tradition and conscience.
Limits on Government Power: Prevents arbitrary or irrational government actions that infringe upon these protected rights.
Judicial Scrutiny: Courts review laws to determine if they unduly burden fundamental rights, often applying strict scrutiny.

The core idea is that the Constitution protects not only the procedures by which the government may deprive someone of life, liberty, or property, but also the substance of the laws themselves, ensuring they are fair and reasonable and do not arbitrarily interfere with fundamental liberties.

Interpretive Approaches To Substantive Due Process

Textualism

Textualism is a method of legal interpretation that focuses strictly on the plain meaning of the words in a legal document, like the Constitution. When it comes to substantive due process, a textualist approach would look very closely at the exact phrasing of the Due Process Clauses in the Fifth and Fourteenth Amendments. The argument here is that if the Constitution doesn’t explicitly mention a right, then it’s not protected under substantive due process. This approach prioritizes the written word over broader interpretations of intent or evolving societal norms. It’s like reading a recipe exactly as written, without adding or subtracting ingredients based on what you think the chef might have intended.

Originalism

Originalism takes a slightly different tack. It’s concerned with the meaning of the Constitution at the time it was ratified. So, for substantive due process, an originalist would ask: what did the framers and the public at the time of ratification understand the Due Process Clauses to protect? This could mean looking at historical legal traditions, common law understandings, and the specific rights that were being protected or debated back then. It’s less about the literal words on the page and more about the original understanding of those words. This method aims to prevent judges from imposing their own modern values onto an old document.

Living Constitution Theory

Living Constitution theory, on the other hand, views the Constitution as a dynamic document that can adapt to changing times and societal values. Proponents of this view believe that the principles enshrined in the Constitution, including those related to due process, should be interpreted in light of contemporary circumstances. This means that rights not explicitly mentioned in the original text, or rights that have gained new significance over time, can be recognized and protected under substantive due process. It’s like saying a foundational document should still be relevant and functional for the people living today, not just those who wrote it centuries ago. This approach often leads to broader protections for individual liberties.

Here’s a quick look at how these approaches might differ:

Interpretive Approach	Focus
Textualism	Plain meaning of the words
Originalism	Original understanding at ratification
Living Constitution	Evolving societal values and principles

Each of these interpretive methods has its own set of arguments for and against it, and they often lead to very different conclusions about what rights are protected by substantive due process. It’s a pretty big deal when you think about it, because these interpretations can really shape people’s lives and freedoms.

Substantive Due Process And Individual Liberties

Substantive due process is a big deal when we talk about what the government can’t do to us, even if it follows all the proper procedures. It’s not just about how the government acts, but what it can do. This part of the Constitution protects certain basic freedoms that are considered so important, the government can’t just take them away, period. Think of it as a safeguard against laws that are just plain unfair or that infringe on our most basic rights, even if the law was passed correctly.

Due Process

Due process itself has two main flavors: procedural and substantive. Procedural due process is about making sure the government plays fair when it tries to take away life, liberty, or property. It means you get notice, a chance to be heard, and a fair hearing. Substantive due process, on the other hand, looks at the reason for the government’s action. Is the law itself infringing on a right that’s too important to mess with? It asks whether the government has a good enough reason to interfere with fundamental liberties.

Freedom Of The Press

This one is pretty straightforward, right? The First Amendment guarantees freedom of the press. This means the government generally can’t censor news organizations or punish them for what they publish. It’s vital for a healthy democracy because it allows for the free flow of information and keeps the public informed about what the government is up to. Without a free press, it’s much harder to hold powerful people accountable.

Freedom Of Assembly

People have the right to gather together, to protest, to meet, and to express their views collectively. This freedom of assembly is closely linked to freedom of speech. It allows citizens to band together to advocate for change or to voice their concerns. Of course, this right isn’t absolute; the government can impose reasonable restrictions on when and where assemblies can happen, but it can’t just shut down peaceful gatherings because it doesn’t like the message.

Right To Petition

This right, also in the First Amendment, allows individuals and groups to ask the government to fix problems or change policies. It’s the right to complain, to lobby, and to seek redress without fear of punishment. It’s a way for citizens to directly engage with their government and try to influence its actions. It’s a cornerstone of representative democracy, ensuring that the government is responsive to the people it serves.

Substantive due process acts as a check on governmental power, protecting individual liberties that are not explicitly listed in the Constitution but are considered essential to freedom and dignity. It prevents the government from enacting laws that, while perhaps procedurally sound, are fundamentally unjust or infringe upon deeply held rights.

Limitations On Government Power Under Substantive Due Process

Substantive due process acts as a significant check on governmental authority, preventing arbitrary or unreasonable interference with individual liberties. It’s not just about fair procedures; it’s about whether the government has a good enough reason to take away certain rights or freedoms in the first place. This doctrine ensures that laws themselves are fair and reasonable, not just the way they are applied.

Separation Of Powers

The principle of separation of powers divides governmental authority among distinct branches: the legislative, executive, and judicial. This division is designed to prevent any single branch from becoming too powerful. Substantive due process intersects with this by ensuring that each branch acts within its constitutionally defined limits. For instance, a legislature cannot pass a law that infringes upon fundamental rights without a compelling reason, even if it follows proper procedures. The judiciary’s role in reviewing such laws is a direct application of this separation, acting as a check on legislative power.

Federalism

Federalism structures government by dividing power between a national (federal) government and state governments. Substantive due process limitations apply to both levels. While states have broad powers to regulate for the health, safety, and welfare of their citizens, these powers are not absolute. They are constrained by the Due Process Clause of the Fourteenth Amendment, which prohibits states from depriving any person of life, liberty, or property without due process of law. This means state laws, like federal laws, must be rational and not infringe upon fundamental rights without adequate justification. The balance of power between federal and state governments, a core aspect of constitutional law, is thus maintained, with substantive due process serving as a safeguard against overreach at either level.

Supremacy Clause

The Supremacy Clause establishes that the Constitution and federal laws made pursuant to it are the supreme law of the land. This means that when a state law conflicts with a federal law, the federal law prevails. In the context of substantive due process, this clause ensures that federal constitutional protections are uniformly applied across all states. If a state law were to violate substantive due process principles, a federal court could invalidate it, regardless of state legislative intent. This reinforces the idea that certain individual liberties are protected from infringement by any government entity, state or federal.

Here’s a look at how these limitations interact:

Legislative Action: Laws must have a legitimate purpose and be rationally related to achieving that purpose.
Executive Action: Government officials cannot act in an arbitrary or capricious manner that infringes on protected liberties.
Judicial Review: Courts examine laws and government actions to determine if they violate substantive due process, applying different standards of scrutiny based on the right involved.

The core idea is that government power, while necessary for order, must be exercised reasonably and with respect for individual freedoms. When government action is overly broad, irrational, or infringes on deeply rooted liberties without a strong justification, substantive due process provides a basis for challenging that action.

Substantive Due Process In Criminal Proceedings

When we talk about criminal proceedings, it’s not just about what laws are broken, but also how the government goes about enforcing them. Substantive due process plays a big role here, making sure that the laws themselves aren’t completely unfair or arbitrary, especially when they affect our basic freedoms. It’s a check on government power, ensuring that even when prosecuting a crime, the state can’t just do whatever it wants.

Due Process Rights

At its core, due process in the criminal context means the government must respect all legal protections owed to a person. This isn’t just about the steps taken during a trial, but also about the fundamental fairness of the laws themselves. The Fifth and Fourteenth Amendments to the U.S. Constitution guarantee that no person shall be deprived of life, liberty, or property without due process of law. This means laws must be clear, non-discriminatory, and serve a legitimate government purpose. If a law is so vague that people of common intelligence must necessarily guess at its meaning and differ as to its application, it might violate substantive due process. It’s about ensuring that the rules of the game are fair before the game even starts.

Criminal Procedural Rights

While substantive due process looks at the fairness of the law itself, procedural due process focuses on the fairness of the legal process. In criminal cases, this translates into a host of rights designed to protect individuals from governmental overreach. Think about the right to a fair trial, the right to an attorney, and protection against self-incrimination. These aren’t just technicalities; they are safeguards that ensure a defendant has a real chance to defend themselves. The government has to follow specific steps, like providing notice of charges and allowing for a defense. Without these procedural protections, the system could easily become oppressive, even if the underlying law seemed reasonable on its face. It’s about making sure the process is as just as the outcome should be.

Search and Seizure

One of the most well-known areas where due process, particularly the Fourth Amendment, comes into play is in search and seizure. Law enforcement can’t just rummage through your belongings or arrest you on a whim. They generally need a warrant, which requires probable cause, or they must fall under a recognized exception to the warrant requirement. The idea is to prevent unreasonable intrusions into our privacy and security. If evidence is obtained illegally, it might be excluded from trial, a concept known as the exclusionary rule. This rule acts as a deterrent against police misconduct and upholds the principle that the government must operate within constitutional boundaries. Understanding these constitutional frameworks is key to appreciating the limits placed on law enforcement.

Here’s a quick look at some key aspects:

Notice of Charges: You must be clearly informed of what crime you are accused of.
Opportunity to be Heard: You have the right to present your side of the story in court.
Impartial Tribunal: Your case should be heard by a judge or jury that is unbiased.
Protection Against Unreasonable Searches: Law enforcement must have legal justification to search you or your property.

The principle of substantive due process in criminal proceedings acts as a vital safeguard, ensuring that the laws themselves are fair and reasonable, and that the government’s power to prosecute is not exercised arbitrarily. It complements procedural due process by examining the fundamental fairness of the legal rules that govern criminal conduct and punishment.

Balancing Interests In Substantive Due Process Cases

When the government steps in and potentially infringes on what we consider fundamental liberties, courts often find themselves in a tricky spot. They have to weigh the government’s reasons for acting against the individual’s right to be free from undue interference. This balancing act is at the heart of substantive due process.

Equal Protection

While substantive due process focuses on the liberty aspect of "life, liberty, or property," the Equal Protection Clause often comes into play when the government’s actions disproportionately affect certain groups. It’s not just about whether a right is infringed, but whether it’s infringed in a way that treats some people unfairly compared to others. The courts look at the classification the government is using. Is it a legitimate reason to treat people differently, or is it based on something suspect, like race or gender? This often involves different levels of scrutiny, depending on the group and the right involved.

Legal Duties and Obligations

On the flip side, the government also has duties and obligations. Substantive due process isn’t a one-way street protecting individuals; it also acknowledges that governments have legitimate roles to play in maintaining order and promoting the general welfare. The challenge is drawing the line. When does the government’s pursuit of a legitimate goal, like public safety, become so intrusive that it violates an individual’s fundamental rights? Courts examine the necessity and proportionality of the government’s action. Is the law or action narrowly tailored to achieve a compelling government interest? Or is it an overreach that unduly burdens individual liberty?

Liability and Responsibility

This brings us to liability. If a government action is found to violate substantive due process, it can lead to legal liability for the government entity or officials involved. This isn’t about punishing the government, but about providing a remedy for the individual whose rights were violated. The goal is often to stop the unconstitutional action and, in some cases, compensate the injured party. It’s a way to hold the government accountable when it oversteps its bounds. The courts have to consider what kind of remedy is appropriate, whether it’s stopping a law from being enforced or awarding damages.

The core of balancing interests in substantive due process cases lies in assessing whether government actions that impinge upon fundamental rights are justified by a sufficiently strong public need. This requires a careful examination of both the nature of the right at stake and the government’s asserted justification for its intrusion.

Strict Scrutiny: Applied when a fundamental right is infringed or a suspect classification is involved. The government must show the action is narrowly tailored to achieve a compelling government interest. This is a very high bar.
Rational Basis Review: Applied in most other cases. The government action only needs to be rationally related to a legitimate government interest. This is a much lower bar.
Intermediate Scrutiny: Sometimes used for quasi-suspect classifications (like gender). The government must show the action is substantially related to an important government interest.

Ultimately, these cases are about finding a fair equilibrium between the power of the state and the liberties of the people. It’s a constant negotiation, and the courts play a key role in interpreting constitutional meaning and ensuring that government power isn’t exercised arbitrarily.

Enforcement And Remedies For Substantive Due Process Violations

When the government oversteps its bounds and infringes upon rights protected by substantive due process, there are ways to seek redress. It’s not just about identifying a violation; it’s about having mechanisms to correct it. This involves understanding the different types of relief available and how to pursue them.

Public Law Remedies

Public law remedies are designed to address violations of constitutional rights, including those protected by substantive due process. These remedies aim to correct governmental overreach and restore the rights that have been infringed upon. They are distinct from private law remedies, which typically deal with disputes between individuals.

Injunctive Relief: This is a court order that either compels a party to do a specific act or prohibits them from doing so. In the context of substantive due process, an injunction might be used to stop a government action that is found to be unconstitutional.
Declaratory Judgments: A declaratory judgment is a court ruling that clarifies the legal rights and obligations of the parties involved. It doesn’t necessarily award damages but states what the law is in a particular situation, which can be critical in defining the boundaries of government power.
Monetary Damages: In some cases, individuals may be able to recover monetary damages from government officials or entities for violations of their substantive due process rights. This often falls under the umbrella of constitutional torts.

Injunctive Relief

Injunctive relief is a powerful tool in enforcing substantive due process. It’s essentially a court order telling a government entity or official to stop doing something that violates constitutional rights. For instance, if a law is deemed to infringe on a fundamental right without sufficient justification, a court might issue an injunction to prevent its enforcement. The goal here is to prevent ongoing harm.

Declaratory Judgments

Declaratory judgments serve to clarify the legal landscape. When there’s uncertainty about whether a government action or law complies with substantive due process, a court can issue a declaratory judgment. This judgment spells out the rights and responsibilities of the parties, providing a clear legal standard. It’s a way to get a definitive answer on the constitutionality of a particular issue without necessarily seeking monetary compensation.

The effectiveness of these remedies hinges on the ability of individuals to access the courts and present their cases. Legal standing, the requirement that a party must have suffered a direct and substantial injury, is a key hurdle. Without it, even a clear violation might go unaddressed.

Enforcement and Compliance

Ultimately, the enforcement of substantive due process relies on the courts and the legal system’s ability to hold government accountable. This involves not just issuing orders but ensuring that those orders are followed. When government actors fail to comply with court mandates, further legal actions, such as contempt proceedings, may be initiated. The entire process is designed to uphold the rule of law and protect individual liberties from arbitrary government action. Understanding these enforcement mechanisms is key to appreciating the practical impact of substantive due process principles.

Understanding Substantive Due Process

So, we’ve looked at substantive due process. It’s basically about protecting certain rights that aren’t always spelled out word-for-word in the Constitution. The courts have figured out that some rights are just too important for the government to mess with, even if they don’t follow all the proper steps. Think about things like privacy or freedom of speech – these are pretty big deals. It’s a way the legal system tries to keep government power in check and make sure people’s basic freedoms are safe from unfair laws. It’s not always a simple topic, and how it’s applied can change, but the core idea is about fairness and protecting what matters most.

Frequently Asked Questions

What is substantive due process?

Substantive due process is a legal idea that protects certain important rights from being unfairly taken away by the government, even if the government follows all the correct steps. It’s about whether the government has a good enough reason to interfere with these basic freedoms.

What kind of rights does substantive due process protect?

It protects fundamental rights that are considered essential to liberty and justice. These can include things like the right to privacy, the right to marry, and the right to raise your children.

How is substantive due process different from procedural due process?

Procedural due process makes sure the government follows fair steps and gives notice before taking away life, liberty, or property. Substantive due process, on the other hand, looks at whether the government’s *reason* for taking away those things is fair and justified in the first place.

Who decides what rights are protected by substantive due process?

Courts, especially the Supreme Court, play a big role in deciding which rights are fundamental and protected by substantive due process. They look at the Constitution and American traditions to figure this out.

Can the government ever limit fundamental rights?

Yes, but only if it has a very strong reason. The government usually has to show that the law serves a compelling interest and is narrowly tailored to achieve that interest. It’s a high bar to clear.

What happens if a law violates substantive due process?

If a court finds that a law violates substantive due process, it can declare that law unconstitutional and therefore invalid. This means the government can no longer enforce it.

Is the right to free speech protected by substantive due process?

While freedom of speech is a fundamental right, it’s primarily protected by the First Amendment’s explicit guarantees. However, substantive due process acts as a backup, ensuring that even rights not explicitly listed are protected from arbitrary government interference.

Does substantive due process apply to all laws?

No, it mainly applies to laws that affect fundamental rights or liberties. For laws that don’t involve these core freedoms, courts usually apply a less strict standard, just looking to see if the law is rationally related to a legitimate government purpose.