What’s the Difference Between a Private Investigator and a Police Detective?
- Tony Randazzo
- Jan 16
- 2 min read

When you hear "detective," you might think of someone solving crimes. Maybe a police officer tracking down a thief. Or a private investigator following someone to uncover the truth.
Who Do They Work For?
Police detectives work for the public. Their job is to solve crimes and keep people safe. They handle cases assigned by their department, like robberies or assaults.
Private investigators work for individuals or businesses. They are hired to handle specific problems, like finding a missing person or investigating fraud. Sometimes, they also work on criminal cases by helping defense attorneys gather evidence or locate witnesses.
What Do They Do?
Police detectives focus on solving crimes. They collect evidence, question suspects, and work with prosecutors to press charges.
Private investigators answer questions. They confirm suspicions, find people, and uncover facts. While they cannot make arrests, they can help with criminal cases by finding details the police might have missed.
What Tools Do They Use?
Police detectives have access to police databases and can get warrants. They also have the authority to arrest people.
Private investigators use other methods. They watch people, check public records, and talk to witnesses. They cannot use police tools or search private property without permission, but they are skilled at finding information.
Who Do They Answer To?
Police detectives report to their department. Their work must hold up in court, so they follow strict rules.
Private investigators answer to their clients. They follow the law but have more freedom to take on many different types of cases, including personal and business matters.
How Quickly Do They Work?
Police detectives manage multiple cases. Serious crimes come first, so smaller cases might take weeks or months.
Private investigators focus on your case. Allowing them to move faster, which can be helpful when time is critical.
Who Should You Call?
If a crime is happening, call the police. They can investigate and enforce the law. But if you need answers about a personal or business issue, or even a second look at a criminal case, a private investigator might be the better choice.
Police detectives and private investigators have different roles. Knowing who to call can save you time and help you get the answers you need.