Arrest and Search Warrants: What Do Detectives Need to Know?

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As a private investigator, you navigate a complex legal landscape every day. Your clients rely on you to uncover facts and find missing people. Often, this work intersects with the criminal justice system. A solid understanding of warrants is crucial for your success and legal safety. You are not a police officer. You do not have the same powers. Knowing the difference between your role and law enforcement’s role regarding warrants is vital. This article will clarify what you need to know about arrest and search warrants.

What is a Warrant?

A warrant is a legal document issued by a judge or magistrate. It gives law enforcement the authority to take a specific action. This action could be arresting a person or searching a location for evidence. Warrants are a key part of the checks and balances in our legal system. They protect citizens from unreasonable searches and seizures, a right guaranteed by the Fourth Amendment. For a judge to issue a warrant, police must show “probable cause.” This means they have a reasonable belief, based on facts, that a crime has been committed.

Understanding Arrest Warrants

An arrest warrant authorizes police to take a person into custody. A judge issues it when presented with evidence linking a suspect to a crime. These warrants do not expire. They remain active until the person is arrested or the warrant is recalled by the court.

A common type of arrest warrant is a bench warrant. A judge issues a bench warrant when a person fails to appear for a scheduled court hearing. This is a frequent scenario you might encounter when skipping tracing a subject.

It is important to understand the scale of this issue. The U.S. Marshals Service alone arrested more than 73,000 fugitives in the fiscal year 2023. This number includes thousands of homicide suspects and sex offenders. This demonstrates the high volume of active warrants that exist across the country.

The Private Investigator’s Role with Arrest Warrants

This is the most critical point: Private investigators cannot execute arrest warrants. You have no legal authority to arrest someone based on a warrant. Attempting to do so could lead to serious legal trouble for you, including charges of false imprisonment or assault.

Your role is to locate, not to arrest. You use your skills in surveillance, database searches, and interviewing to find people who may have active warrants. When you locate such an individual, your duty is to report your findings to the appropriate law enforcement agency. You provide them with the information they need to make a safe and legal arrest.

Always prioritize safety. People with active warrants, especially for serious crimes, can be dangerous and desperate. Do not approach or confront them. Your job is to gather intelligence and hand it over to the professionals equipped to handle the arrest.

When searching for warrant information, precision is key. A minor misspelling of a name or an incorrect date of birth can lead to a false negative result in public databases. Always triple-check your subject’s identifying information. You can often check for outstanding warrants through online public access portals provided by local sheriff’s offices or courts.

For more on locating individuals, read our guide on skip tracing techniques for private investigators.

Understanding Search Warrants

A search warrant allows law enforcement to search a specific place for specific evidence of a crime. Like arrest warrants, they require a judge’s approval based on probable cause. The warrant must describe the location to be searched and the items to be seized in detail. This prevents general, exploratory searches by the police.

There are exceptions to the search warrant requirement. Police do not always need a warrant to search. Some common exceptions include:

  • Consent: If a person with authority voluntarily agrees to a search.
  • Plain View: If an officer sees illegal items in plain sight while legally present in a location.
  • Exigent Circumstances: An emergency where evidence might be destroyed, or people are in danger.
  • Automobile Exception: Police can search a vehicle if they have probable cause to believe it contains evidence of a crime.


The Crucial Difference: PIs and Search Warrants

Just as with arrest warrants, private investigators cannot obtain or execute search warrants. You are a private citizen. You do not have the authority to enter private property without permission to look for evidence. Doing so is trespassing, a criminal offense.

Furthermore, any evidence you obtain through an illegal search will likely be inadmissible in court. This is known as the “exclusionary rule.” Your hard work will be wasted, and you could face civil lawsuits or criminal charges.

Your investigations must rely on legal methods. This includes:

  • Surveillance: Observing subjects in public places where they have no reasonable expectation of privacy.
  • Public Records: Searching databases for court records, property deeds, and other publicly available information.
  • Consensual Interviews: Speaking with people who voluntarily agree to talk to you.
  • “Plain View” observations from a public vantage point.

You can learn more about conducting effective surveillance in our article on surveillance techniques and gear.

Private Citizen Warrants

In some states, like Georgia, a private individual can apply for an arrest warrant against another person. This is often called a “private warrant” or “citizen’s warrant.” This typically happens in cases of misdemeanor disputes where law enforcement did not witness the crime.

The process involves the citizen filing an application and attending a hearing before a judge. The judge then decides if there is probable cause to issue a warrant. As a PI, a client might ask you for advice on this process. While you can explain the general concept, you should always refer them to a legal professional for specific advice. Initiating a private warrant without sufficient grounds can lead to lawsuits for malicious prosecution.

Best Practices for Private Investigators

To operate ethically and effectively, always keep these points in mind:

  • Know Your Limits: You are an investigator, not a police officer. Stay within the bounds of your legal authority.
  • Never Arrest: Do not attempt to take anyone into custody.
  • Never Trespass: Do not enter private property without permission to search for evidence.
  • Verify Information: Be precise with names and dates when checking for warrants.
  • Cooperate with Law Enforcement: Your role is to support their work by providing accurate and timely information.
  • Stay Informed: Laws regarding privacy and investigations can change. Keep yourself updated on the regulations in your state.

Understanding the legal framework of warrants is essential for every private investigator. By knowing what you can and cannot do, you protect yourself, your business, and the integrity of your investigations. Your value lies in your ability to gather information legally and ethically, providing your clients with the answers they need without crossing legal lines.

For more resources on private investigation, visit our homepage.


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Michael Kissiah
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