Due process is at the heart of every criminal case, from a misdemeanor theft charge to a serious felony prosecution. Rooted in the U.S. Constitution and reinforced by the California Constitution, due process ensures that individuals are treated fairly, that legal procedures are followed, and that rights are protected at every stage of the criminal justice process.
This article breaks down the concept of due process in California criminal cases, explaining how it works, what rights it guarantees, and what defendants should know as they navigate the system.
What Is Due Process?
Due process refers to the legal requirement that the government must respect all legal rights owed to a person. It stems from two clauses:
The Fifth Amendment to the U.S. Constitution, which applies to the federal government: “No person shall…be deprived of life, liberty, or property, without due process of law…”
The Fourteenth Amendment, which extends due process protections to actions by state governments, including California.
Procedural Due Process: Ensures fair procedures when the government takes action against someone.
Substantive Due Process: Protects certain fundamental rights from government interference, even if fair procedures are used.
Due Process in Criminal Investigations
Due process begins before a person is formally charged. During investigations, the police and prosecutors must respect constitutional limits on their conduct. This includes:
The right to be free from unreasonable searches and seizures (Fourth Amendment) Law enforcement must obtain a warrant or meet specific exceptions (e.g., consent, exigent circumstances) to conduct searches or make arrests.
The right against self-incrimination (Fifth Amendment) You cannot be forced to speak to police or make statements that may be used against you.
The right to counsel (Sixth Amendment, as interpreted in pre-charge contexts) While not always applicable pre-charge, defendants are entitled to legal representation once formal proceedings begin.
Evidence obtained in violation of these rights can be excluded from court under the exclusionary rule, a vital enforcement tool for due process protections.
Due Process at the Charging Stage
Once charges are filed, due process ensures that defendants are not subjected to vague or arbitrary accusations. Specifically, the law requires:
Clear and specific charging documents: The complaint or information must state the alleged crime with enough detail to prepare a defense.
Probable cause determinations: A judge must find probable cause to hold a person to answer for felony charges—either through a preliminary hearing or grand jury indictment.
Speedy and public hearings: Unnecessary delays or secret proceedings can violate due process.
In California, the prosecution must provide notice of charges and give the defendant an opportunity to be heard—a fundamental due process guarantee.
The Right to a Fair Trial
The trial process is where procedural due process is most visible. Key protections include:
The right to notice of the charges: Defendants must be informed of the charges they face and allowed to prepare a defense.
The right to a public trial: Transparency helps ensure fairness and accountability.
The right to an impartial jury: Jurors must be unbiased and selected through a fair voir dire process.
The right to confront witnesses: Under the Confrontation Clause, defendants can cross-examine those who testify against them.
The right to call witnesses and present a defense: Defendants can subpoena witnesses and introduce evidence.
The right to remain silent: Defendants cannot be compelled to testify and their silence cannot be used as evidence of guilt.
The right to counsel: The state must provide a defense attorney for those who cannot afford one, as guaranteed in Gideon v. Wainwright and implemented through California’s public defender system.
Violations of any of these rights—such as judicial bias, improper jury instructions, or withheld evidence—can result in a conviction being overturned.
Due Process in Sentencing
Due process also applies at the sentencing stage. A defendant has the right to:
Be sentenced under laws in effect at the time of the offense
Receive notice of aggravating factors or enhancements
Challenge evidence presented in support of sentencing
Receive a sentence consistent with constitutional protections against cruel or unusual punishment (Eighth Amendment and California Constitution, Article I, Section 17)
In California, judges have increasing discretion to strike sentencing enhancements or consider mitigating factors. These decisions must follow established procedures and be based on admissible evidence.
Post-Conviction Rights and Appeals
Due process continues after conviction. Defendants are entitled to:
Appeal their conviction and sentence
Access transcripts and trial records for appeal
Receive appointed counsel for their first appeal if indigent
Pursue post-conviction relief (e.g., habeas corpus petitions), especially if there was a constitutional violation
California has a robust appellate process and post-conviction mechanisms that allow review of potential errors, including ineffective assistance of counsel or newly discovered evidence.
Common Due Process Violations in California Cases
Violations of due process can occur at any stage. Some of the most common include:
Convictions based on coerced confessions or suggestive identification procedure
Excessive delays between arrest and trial
Inadequate notice of charges or sentence enhancements
When such violations occur, the defense can move to suppress evidence, request a dismissal, or pursue a new trial or appeal.
Stay up to date on Criminal Law with CEB
CEB provides a range of online services designed to enhance legal practice, including Practitioner, CEB’s all-in-one legal research solution with authoritative practice guides. Practitioner is meticulously crafted by California lawyers for California lawyers, providing comprehensive insights and resources tailored to your specific needs. All practice guides seamlessly integrate with CEB’s primary law research tool, empowering you to delve into California, Ninth Circuit Court of Appeals, and U.S. Supreme Court case law, alongside California statutes and the California Constitution. As part of the Practitioner subscription, you gain access to DailyNews, ensuring you stay updated on any critical new cases or developments in your field. And don’t forget, Practitioner also includes TrueCite®, CEB’s powerful case law citator, enhancing your research efficiency and accuracy.
Our tools offer unparalleled support in case law research, legal analysis, and staying updated with the latest judicial decisions. By choosing CEB, you gain access to a wealth of knowledge, enabling you to navigate complex legal landscapes with confidence and precision.
Starting your litigation practice in California can be both exciting and overwhelming. While law school offers theoretical foundations, real-world litigation involves mastering procedure, managing client expectations, and making strategic decisions … Continued
In California’s fast-moving criminal justice system, staying current on new laws, court decisions, and procedural updates is essential. Whether you’re a seasoned criminal defense attorney, a new deputy district attorney, … Continued
Criminal law practice in California demands a deep understanding of procedural nuances, evidentiary rules, pretrial strategy, sentencing laws, and post-conviction relief. For both prosecutors and defense attorneys, staying current and … Continued