Facing criminal charges in Louisiana is about more than the offense you are accused of committing. It is equally about how the State investigates, charges, and tries your case. The rules that govern that process are found in the Louisiana Code of Criminal Procedure, and understanding them is often the difference between a conviction and a dismissal. At The Ambeau Law Firm, our Baton Rouge criminal defense attorneys use these procedural rules every day to protect our clients’ constitutional rights. If you have been arrested or are under investigation, call our office for a free, confidential consultation.
Procedural Law vs. Substantive Law: What Is the Difference?
Criminal law is generally divided into two categories. Substantive law defines what conduct is a crime and what punishment may follow — for example, the statutes that define first degree murder, theft, or DWI and set out their penalties. Substantive law answers the question, “Did the defendant do something the law forbids, and what is the sentence?”
Procedural law, by contrast, governs the process by which the State enforces substantive law. It controls how police may stop, search, and arrest a person; how and when charges must be filed; what evidence the prosecution must turn over; how a trial is conducted; and what deadlines bind the State at every stage. Procedural law answers a different question: “Did the government follow the rules in building and prosecuting this case?”
The distinction matters because a defendant can be factually accused of a serious crime and still be entitled to relief — suppression of evidence, dismissal of charges, or release from custody — when the State violates the rules of procedure. The substance of the accusation and the procedure used to pursue it are independent. A flaw in procedure can sink an otherwise strong prosecution.
Why Procedure Matters When You Are Facing Prosecution
The Louisiana Code of Criminal Procedure exists to keep the power of the State in check. Each article creates a duty for the government or a right for the accused, and each one is a potential point of defense. Procedural rules determine whether an illegal traffic stop taints every piece of evidence that followed, whether a confession can be used, whether the State filed charges within the time the law allows, and whether you were brought before a judge fast enough after a warrantless arrest.
Defense lawyers leverage procedure in several ways: by moving to suppress evidence obtained through an unlawful stop, frisk, or search; by challenging defective charging instruments; by enforcing the State’s discovery and disclosure obligations; by insisting on timely probable cause determinations and preliminary examinations; and by holding the prosecution to statutory deadlines. When the State cuts a corner, procedure is the tool that turns that error into a remedy for the accused.
Key Articles of the Louisiana Code of Criminal Procedure
Below are individual guides to the Code of Criminal Procedure articles that most frequently shape a criminal defense in Louisiana. Each guide quotes the statute, explains why it matters to your defense, and answers common questions.
Investigation, Coroner & Prosecutorial Authority
- Art. 20 — Contempt of Court
- Art. 61 — District Attorney Powers
- Art. 103 — Coroner Subpoena Power
- Art. 106 — Coroner Arrest of a Suspect
Search & Seizure
- Art. 162 — Search Warrants & Probable Cause
- Art. 162.3 — No-Knock Warrants
- Art. 163.1 — Warrants for Bodily Samples
Stops, Arrests & Detention
- Art. 215.1 — Stop and Frisk
- Art. 201 — Arrest Defined
- Art. 202 — Arrest Warrant Issuance
- Art. 204 — Execution of Arrest Warrant
- Art. 213 — Warrantless Arrest
- Art. 217 — Method of Arrest Under Warrant
- Art. 218 — Method of Arrest Without Warrant
- Art. 224 — Forcible Entry to Arrest
- Art. 28 — Summons or Warrant of Arrest
- Art. 230.2 — The 48-Hour Rule
Evidence & Identification
Extradition
Preliminary Examination
- Art. 291 — Authority to Conduct Preliminary Examinations
- Art. 296 — Scope of the Preliminary Examination
Bail
- Art. 312 — Right to Bail
- Art. 314 — Authority to Fix Bail
- Art. 316 — Factors in Fixing Bail
- Art. 319 — Modification of Bail
Habeas Corpus & Charging
- Art. 351 — Habeas Corpus
- Art. 382 — Instituting Prosecutions
- Art. 383 — Indictment
- Art. 384 — Information
Talk to a Baton Rouge Criminal Defense Attorney
Procedure is technical, and the deadlines are unforgiving. If you believe the State may have violated your rights — or you simply want to understand the process ahead — the attorneys at The Ambeau Law Firm can help. Contact us or call (225) 330-7009 for a free, confidential case evaluation.