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eInvestigator.com is an online resource for professional investigators, police officers and detectives, process servers, security experts and anyone interested in using online tools, websites and databases to uncover information.

private investigator research resources

Private Investigator Research Tools

We compiled this list of private investigator research tools specifically for private investigators....
BeenVerified Background Check

BeenVerified Background Checks and Public Records Search

This article provides a review of BeenVerified, the online people search and public...
open source intelligence tools

Open Source Intelligence Tools (OSINT)

What is Open Source Intelligence (OSINT)? Open Source Intelligence, often...
surveillance equipment

Surveillance Equipment and Spy Gear for Investigations

Surveillance equipment includes any equipment, gadget or device that is used to conduct various...
Cell phone tracker and Mobile phone spy software

Best Cell Phone Trackers and Mobile Phone Spy Software

What is Mobile Phone Spy Software? Mobile Phone Spy Software is...
How to get a police report

How to Get a Police Report

What is a Police Report? People file a police report with...

Join the Private Investigator Directory and connect with potential clients all over the world. Promote your services, drive traffic to your website and get more business.

The Police and Law Enforcement section has a collection of helpful articles related to law enforcement work. Learn what it takes to become a police officer and where to get the training and education you need. Plus, learn about the equipment, weapons and vehicles used by officers in the line of duty.

List of Vehicles used by Police Officers

Police Vehicles

Police officers rely on a wide variety of high performance vehicles to ensure they can effectively respond to various situations in an appropriate and timely manner. These police vehicles are designed to provide officers with an effective...
Law enforcement associations

Police Industry Associations

Following is a list of law enforcement associations and police associations: List of Police Industry Associations and Organizations American Federation of Police & Concerned Citizens - The AFP&CC is a nonprofit...
Find Someone Who is in Prison

How to Find Someone in Prison or Jail

Starting Your Search If you need to find someone who is in prison, it is important to know exactly what type of facility they are incarcerated in. A prison, also known as a penitentiary...

Private investigators, law enforcement officers, and intelligence agents use a variety of computer software, online services, and mobile apps during the investigative process.

Private Investigator Software

Private Investigator Software

Learn How Private Investigators Use Software Technology plays a key role in any investigation business. Detectives use a combination of online search tools, computer software and mobile apps to support many aspects of investigations.
Cell phone tracker and Mobile phone spy software

Best Cell Phone Trackers and Mobile Phone Spy Software

What is Mobile Phone Spy Software? Mobile Phone Spy Software is a hybrid software and monitoring service that is used to track caller activity on mobile devices, cell phones tablets and computers. The software is...
Case Management Software

Case Management Software

This article provides an overview of legal case management and case management software. Case Management is the information management and workflow practices, procedures and requirements used to manage legal cases, typically associated with...

Detectives in all industries use software programs like case management software, databases, productivity tools and more to help their agency operate more efficiently. In addition, professional detectives and intelligence agents use online services to conduct research, run background checks, search public records databases and pull reports and data to find missing persons and uncover the truth about people. Also, private eyes make heavy use of specialized applications (or apps) on their mobile devices to search for information on the go.

Some cases require the use of hi-tech surveillance equipment, sometimes referred to as spy gear. Sleuths and gumshoes who provide surveillance services need to be familiar with a wide range of electronic gadgets such as video cameras, binoculars and night vision goggles, audio listening devices, bugging and debugging equipment, drones and many more.

TASERS and stun guns

TASERS and Stun Guns

What are TASERS and stun guns? TASERS and stun guns handheld electroshock gun that was developed by a company called TASER international. Most people are surprised to learn that the name TASER is actually...
Tile Item Tracker

Tile Bluetooth Tracking Device

One of the coolest gadgets to emerge in recent months is the small Bluetooth tracking device. The most popular such item is the Tile item tracker. The device can be attached to almost anything and then tracked...
surveillance equipment

Surveillance Equipment and Spy Gear for Investigations

Surveillance equipment includes any equipment, gadget or device that is used to conduct various types of surveillance, counter-surveillance and investigations. The equipment is most often used to perform surveillance, which involves observing the behavior of...

Review the articles in our spy gear section to learn more about the types of tools a private investigator might use to catch a cheating spouse, track down a missing person and gather information for a case.

If you’re a natural snooper, you love information. Be sure to check out our extensive Lists of Lists category. You’ll find information such as List of Social Networks (for social media checks), List of State Information, List of Search Engines for private eyes and more. The lists are for anyone who is interested in interesting facts and information, not just for those who are employed in professions related to the investigative industry.

List of the Largest Cities in the World

List of the Largest Cities in the World by Total Population

Following is a list of the largest cities in the world by total population. The cities are ranked in descending order, beginning with the largest city first. The population numbers shown includes the population within the recognized metro...
List of Teams in the NFL

List of Teams in the National Football League (NFL)

This article provides an overview of the National Football League (NFL) and provides a List of Teams in the NFL. The National Football League is the largest professional American football league in the world. From a legal...
List of Signs of a Cheating Spouse

List of Signs of a Cheating Spouse

Cheating spouses often exhibit noticeable changes in behavior. Catching a cheating spouse may be difficult and even require the use of a private investigator. Private investigators may use personal surveillance techniques, video taping, or photography to obtain...

Get a PI License

If you’re interested in becoming a private investigator learn how to get a license with our state-by-state licensing guide. If you’re interested in pursuing an exciting career in the investigation industry, you’ll find everything you need to get started right here. Learn the state requirements, how to apply, how to join an association, where to get training and how to find more information.

Use our private investigator books to build your own library of reference and education materials. The library includes an extensive selection of how-to books, textbooks, reference manuals and magazines to help you learn new skills and techniques.

Training & Education

View our list of training and education resources. Whether you’re an experienced professional, or just getting started as an entry level associate, you’ll find a variety of investigation schools, academies, training classes, home study courses and distance learning programs. Learn the knowledge and skills you need to be private investigator and earn your degree, diploma or certificate. Includes recommended books, study guides and exam preps.

A list of useful Open Source Intelligence (OSINT) tools and resources. Includes search tools to help you find public records, verify facts, search social media sites, reverse search images, uncover government data and more.

The United States Government has a wide variety of resources that are useful for private eyes. See our List of Government Agencies and U.S. Federal Regulatory Agencies.

Learn how to avoid becoming a victim of the latest fraud, scams and schemes. Learn what to look for, how to protect yourself and how to report crimes to the proper authorities.

As a private investigator, it’s important to keep in touch with what’s going on in the industry. Industry groups and associations regularly sponsor nationwide, regional and local conferences. The meetings and seminars are an excellent way to keep up with legislative changes that affect you. In addition, they are a great way to brush up on your skills, network with other private eyes and learn about new products and services. View a list of conferences.

We have a helpful collection of genealogy research resources for researching your family history, building a family tree, and tracking down your roots. We have links to helpful sites related to ancestry, heritage, DNA and historical records. Plus, we’ll provide an overview of the best software and books and provide suggestions for looking up obituaries and how to find biographies. Visit the Genealogy section.

Search Public Records

Run an online public records people search and find out the real truth about anyone. Learn how to search online databases to track down an old friend, reconnect with a lost love or find a missing person.

New and Updated Articles

Prince's Autopsy Report

Prince’s Autopsy Report and Death Investigation

This article provides an overview of the events surrounding the death of Prince Rogers Nelson, commonly known as Prince. I'll cover the events leading up to his...
Monk TV series

Monk TV Series

Overview of the Monk TV Series Monk is an American crime television series drama that ran on the USA television network. Andy Breckman created...
List of Alexa Commands

Amazon Echo > List of Alexa Voice Commands

The Amazon Echo and Alexa In this article, I'll provide an overview of the Amazon Echo family of devices. And, I'll provide a list...

We recommend that all private investigators join and participate in a local, state or nationwide investigation association for a number of reasons. First, associations are a great way to stay on top of what’s going on in the profession. Second, they often provide members with access to training and education opportunities. So, you can continue to sharpen your skills. Also, they are a great way to network with others and create a referral network. View the list of investigation associations for each state.

Popular crime TV series, police dramas and detective shows have inspired many people to pursue exciting careers as police officers and private detectives. Check out our List of the Top 50 Best Crime TV Series and Detective Shows. For example, we have overviews of classic shows like Simon & Simon, Columbo, Baretta, Hawaii 5-0 and many more. Honestly, Magnum has always been our favorite.

Mobile Spy Software is used to track the activity and location of a mobile phone or tablet. Most commonly, cell phone trackers are used by concerned parents, employers and suspicious spouses. Read our reviews of the best solutions such as mSpy, FlexiSpy, Highster Mobile and others.

Police detectives and private investigators leverage crime scene investigation techniques and forensic science techniques, tools and equipment to investigate crime scenes. In addition, they a knowledgeable in collecting, transporting and preserving crime scene evidence, data and information. Also, they leverage labs to analyze fingerprints, examine DNA evidence and evaluate ballistics.

Learn how auditors, inspectors and examiners conduct inquiries into financial matters. For example, our Financial Investigation section includes articles on Asset Search and Recovery, Credit Reports, Banking Information, Stock Market Research tools, books and more.