Private Investigator Research Tools

private investigator research tools
Image by Gerd Altmann from Pixabay

We compiled this list of private investigator research tools specifically for private investigators. It serves as a quick index to the most valuable resources on our site. However, the resources are helpful for police officers, crime scene investigators, forensic experts, and others who work in or with the investigation industry.

In addition, free research tools are helpful for those who work in security-related fields, such as security guards, bodyguards, and bounty hunters. Also, professionals who work to track down debtors and locate missing persons, such as collection agents and skip tracers.

The list contains extensive research resources, search tools, reference material, how-to articles, websites, and other helpful information.

List of Private Investigator Research Tools



  • Background Checks – An overview of top information service providers conducting background checks and investigations.
  • Badges – Private Eye badges
  • Bail Bondsman – An overview of bail bonds and those issuing bonds.
  • Bank Accounts – Information on bank accounts for financial inquiries.
  • Banking Regulations – For those involved with financial matters.
  • Bankruptcy – An overview of bankruptcy for those who are conducting asset searches.
  • Become a Private Investigator – Learn how to get a private investigator license in each state.
  • BeenVerified Background Search Review –  A full review of the popular public records search engine.
  • Blogging Websites – A review of the top blogging and content management solutions for setting up your agency site.
  • Bodyguard – Bodyguarding, executive protection, personal protection websites, books, and more.
  • Body Language – How to identify deception
  • Books of the Bible – One of the more popular topics in our List of Lists section.
  • Bounty Hunters – Fugitive recovery information and websites.
  • Business Research Tools – Tips and advice for uncovering information about companies. Includes sources for business news, magazines, and more.


  • Catfish Investigations – An overview of catfish investigations for online dating scams and fraudulent schemes.
  • Celebrity Investigations – Learn about the drama behind high-profile celebrity deaths, arrests, and cheating scandals.
  • Celebrity Mug Shots – A list of mugshots of Hollywood celebrities
  • Civil Investigations – Support for civil trials involving separation, divorce, child custody, alimony, and child support payments.
  • Collections Agency – Since gumshoes are experts at tracking down debtors, it’s good to know about collection agencies.
  • Computer Forensics – Information on the computers, digital, cyber, and IT forensic investigation processes, tools, books, and reference information.
  • Crime Scene Investigation – Learn about the process and procedures involved in investigating crime scenes, collecting evidence, conducting forensic analysis, ballistics, firearm identification, DNA testing, police procedures, photography, tips, and more.
  • Criminal Records Search – Learn how to find criminal records and court documents.


  • Detective Training – Training classes, degree programs, and continuing education for private eyes.
  • Dictionaries / Glossaries – A list of terms and definitions for performing investigations.
  • Divorce Investigations – Resources for divorce, infidelity, and surveillance.
  • DMV – Motor Vehicle Search – List of DMV offices throughout the U.S.
  • DNA Lab Testing – For testing crime scene evidence or genealogical research.
  • Domain Name Suffixes – A list of all domain name suffixes. Also, it includes an overview of domain names. Excellent reference material for PC forensics and computer-related cases.
  • Dumpster Diving – A technique that private investigators may use to uncover helpful information during an investigation.





  • Handwriting Analysis – How to analyze a subject’s handwriting to determine possible personality traits.
  • Hire a Private Investigator – Visit our worldwide directory of private investigators to hire an expert in your area. Our directory has private investigators, process servers, bodyguards, background check companies, and arson investigators.
  • Homeland Security – The government agency responsible for keeping the United States safe.
  • How to Find Hidden Cameras – A step-by-step guide for finding hidden cameras and other surveillance equipment.
  • How to Find Someone in Prison – If you are searching for a missing person, they may be incarcerated. Learn how to check local jails and state/federal prisons to find inmates.
  • How to Promote your Business with Social Media – Learn how to use social media to promote your services, build a following and connect with others who work in the industry.
  • How to Survive a Mass Shooting – Learn how to stay alive in an active shooter situation. Get advice from law enforcement, security experts, military, and survivors.
  • Hunchly – Web capture software solution for online investigations


  • Insurance Fraud Investigations – Investigating fraudulent insurance claims, a list of major insurance providers in the United States, and insurance resources.
  • Insurance Companies – A list of the major insurance companies in the United States.
  • Intelius Public Records Search – Run various online reports to gather facts and information about people. Reports include criminal records, public records, property information, address and phone number reports, court documents, etc.
  • Investigation TV Shows – The best police dramas and crime TV shows.
  • Investigation Industry Conferences, Seminars, and Events – Find events, conferences, and seminars related to the investigation industry. Stay in touch with what is happening in the industry, learn about new products and technologies, and network with other investigators.
  • Investing – Reference material for financial investigations and asset searches.



  • Law Enforcement – Online resources, agencies, associations, and more for police officers.
  • Legal Forms – Helpful forms for personal and business purposes such as Bill of Sale, Bankruptcy, Deeds, Divorce and Separation, Incorporation, LLC Formation, Last Will & Testament, Power of Attorney, Pre-Nups, Wills, and more.
  • Legal Research – Free research websites for legal-related matters.
  • Licensing (Private Investigator) – Learn how to become a licensed private investigator.
  • License Plate Search – Learn about license plate searches, how they are conducted, and if private investigators can legally run a search.
  • List of Lists – Lists on a wide variety of topics.
  • List of Acronyms for Chatting and Texting
  • Lock Picking – Learn how to pick locks like a professional.
  • Loss Prevention – Learn how businesses prevent financial loss by preventing theft and embezzlement.






  • Reports – Learn how to order investigative reports online for background checks, public records searches, reverse phone number lookups, property records, and more.
  • Report a Crime – How to report that crime to the appropriate law enforcement organization.
  • Research Databases – Database information providers.
  • Reverse Search – Run a reverse search to find people, phone numbers, and addresses.








  • Zip Code Lookup – Find zip codes for a particular area or the zip code for a particular address.

Questions and Comments

If you have any questions about our list of private investigator research tools, please post a comment below.


  1. What a comprehensive list of resources. Thank you! I was a licensed PI several years ago and am trying to refresh my skills because I have an interview for an investigator with the public defenders office. Technology changes so rapidly and many of these resources were not available when I last worked as a PI. I could spend countless hours on your website looking at all the interesting links you shared.

  2. Thank you for the exhaustive list of private investigator tools! I’ll let you know if I can find anything that would be useful to add to your list here.

  3. Informative article. Thanks for sharing about the private eye research resources. Very helpful. Thanks.


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