Investigative Research Tools, Reference Materials, and Website Resources for Detectives
Welcome to eInvestigator.com’s list of private investigator research resources. We compiled this list of investigative tools specifically for private detectives, legal professionals, police officers and everyday people who use the internet to find people, information and data related to private detective and law enforcement cases.
The list contains an extensive collection of research resources, search tools, reference material, how-to articles, websites and other types of helpful information on a wide range of topics related to the investigation and law enforcement industry. Individuals who work as cops, in the legal field and law-related professions, security guards, the collections industry, and even journalism will also find this list to be an excellent resource.
In many cases, the resources are linked to other pages on our site. In some cases, we link out to external resources where more detailed or specialized information can be found. The pages generally provide an overview of the topic, a description of why it is relevant to private eyes, and links to additional websites, books, software, spy gear and other equipment.
We recommend bookmarking this page. It’s one you’ll want to come back to again and again.
- ABA Bank Routing Numbers – Overview of routing numbers for financial inquiries.
- Accident Reconstruction – Helpful information for traffic accident reconstruction.
- Acronyms – Acronyms and their meanings related to detectives and law enforcement
- Address Search – Find addresses, lookup phone numbers and run reverse searches.
- Adoption Research Tools – Locate adoptive parents.
- Airline Codes and Phone Numbers for Major Airlines
- Alumni Search – Resources for finding old classmates and friends.
- Amendments – List of constitutional amendments
- Area Codes List by State, by Number and Search Tools – A list of area codes for each state, and in numerical order. Also includes search and reverse lookup tools.
- Arrests and Warrants – Learn about the different types of arrests and warrants.
- Arson Investigations – Info for arson investigators and fire investigations.
- Articles on Private Investigations
- Automobile Research Reports – Vehicle history reports, auto associations, manufacturers, industry data providers and auto repossession.
- Background Checks – An overview of top information service providers for conducting background checks and investigations.
- Badges – Private Eye badges
- Bail Bondsman
- Ballistics – Firearm identification and analysis.
- Bank Accounts – Information on bank accounts for financial inquiries.
- Banking Regulations
- Become a Private Investigator – Learn how to get a private investigator license in each state.
- Blogging Websites
- Boat & Marine Information – Links to websites for conducting maritime investigations.
- Bodyguard – Bodyguarding, executive protection and personal protection websites.
- Books of the Bible
- Bounty Hunters – Fugitive recovery
- BrickhouseSecurity.com – Provides a wide selection of spy gear and electronic surveillance equipment.
- Business Research Tools – Tips and advice for uncovering information about companies. Includes sources for business news, magazines and more.
- Celebrity Investigations – Learn about the dram behind some of the most high-profile celebrity deaths, arrests and cheating scandals.
- Celebrity Mug Shots – Many mugshots are now available online. Check to see if someone has been arrested.
- Correctional Officer – Prison guards
- Crime Scene Investigation
- Detective Training – Training classes, degree programs and continuing education for private eyes.
- Dictionaries / Glossaries
- Divorce Investigations
- DMV – Motor Vehicle Search
- DNA Lab Testing
- Domain Names and List of Domain Suffixes
- E-Mail Search – Tools for finding and researching emails and email addresses
- Elder Abuse Investigations
- Evidence Collection – Police procedures and tips for collecting evidence from crime scenes.
- Expert Witness
- Facts and Information – A list of fun facts and information on a variety of topics.
- FBI Books – Books on the Federal Bureau of Investigation, including how to pursue a career in the FBI.
- FBI Field Offices – A list of FBI offices
- Federal Bureau of Prisons
- Federal Regulatory Agencies
- Financial Calculators – Online calculators for everything from mortgage payments to credit card debt.
- Fingerprinting – Fingerprinting procedures and equipment for private eyes and police officers.
- Forensic Investigations – Crime scenes, DNA testing, photography and more.
- Fraud Detection and Prevention – Information and links for investigating and combating fraud.
- Genealogy Research – Research family histories and find long lost relatives.
- Genealogy – National Archives – Using the National Archives to find family members
- Glossary of Legal Terms – A list of commonly used legal terms and their definition.
- Google Search Commands
- Government Email
- Government Research Tools and Information – How To Use Government Resources, Data and Information for Research and Investigations
- Handwriting Analysis
- Homeland Security
- How to Promote your Business with Twitter, Facebook and LinkedIn
- Human Resources (HR)
- Insurance Fraud Investigations – An overview of investigating fraudulent insurance claims, list of major insurance providers in the United States, and insurance resources.
- Investigation TV Shows – The best police dramas and crime TV shows.
- Law Enforcement – Online resources, agencies, associations and more for police officers.
- Law Enforcement Training – Training classes and continuing education for police officers.
- Lawyers / Legal Professionals
- Legal Forms – Legal forms and law form packages for a variety of legal 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 – Law directories, attorneys and lawyers and the American Bar Association (ABA)
- Licensing (Private Investigator) – Learn how to become a licensed private investigator.
- License Plate Search
- List of Lists
- Lock Picking – Learn how to pick locks like a professional.
- Loss Prevention
- Malpractice Investigations
- Map Search
- Military Locator Services – How to find someone in the military.
- Miranda Rights – An overview of Miranda Rights and the Miranda Warning
- Missing Persons
- Mobile Phone Spy Software
- Morse Code
- Most Wanted Criminals
- Motor Vehicle Records
- Mystery Shopping Services
- National Crime Info Center
- Negligence Investigations
- Net Detective and Net Detective Plus
- Notary Public
- Obituaries – Learn to search the obituaries to find out if your subject is deceased.
- Online Calculators
- Online Coupon Websites
- Online Television Shows –
- Paranormal Investigations – Ghost hunters
- People Search – Online tools for finding people
- Pepper Spray – Different types of pepper and mace for personal protection.
- Personal Protection
- Pet Detective
- Phonetic Alphabet
- Police Equipment
- Police Officer
- Police Reports – Learn how to find police reports.
- Police Ten Codes
- Polygraph – Information on polygraphs and lie detector tests.
- Presidents / List of U.S. Presidents
- Private Investigation Articles
- Private Investigation Associations – Find an association to join and network with other professionals.
- Private Investigator Licensing – Learn the rules and regulations for getting licensed in any state.
- Private Detective Jobs
- Private Investigator Reports
- Private Investigator Salary
- Private Eye Services
- Private Investigator Software
- Private Detective Training
- Private Investigator DVDs
- Property & Land Records
- Process Service
- Public Records Search – Search for basic background check information such as addresses, phone numbers, professional licenses and more.
- Recalls – Product Recalls
- Reference Guides and Websites
- Report a Crime
- Research Databases
- Reverse Phone Number Search
- Salary – Private Investigators
- Scams and Fraud Schemes
- Search Engines/ Directories
- Secret Service
- Security Guards
- Security Systems
- Service of Process
- Sex Offender Search by State
- Skip Tracing Online
- Skype Software – Chat with clients in real time.
- Social Networking Websites
- Social Security Numbers
- Spokeo People Search – Search anybody by name, e-mail address, phone number, online username or even friends in your address book and instantly return lots of info.
- Spy Stores / Spy Equipment
- Stalking and Anti-Stalking
- State Information – State abbreviations, state capitals, constitutions and websites.
- State Bar Associations
- Stock Market Information
- Stolen Property and Goods – How to use the Trace service to determine if property or goods have been reported as stolen to the FBI Stolen Articles file on the NCIC database.
- Survival Kits & Supplies
- TASER Guns and Stun Guns
- Telephone Number Search and Reverse Search Tools
- Ten Codes
- Training, Development and Education
- Travel Guides – List of websites for researching travel, maps and geography. See also
- Hotels and Budget Hotels
- TV Crime and Investigation Shows
- Unclaimed Property Research
- Urgent Detective
- U.S. Department of Defense and The Pentagon
- U.S. Military: An Overview of the Army, Navy, Air Force and Marines
- United States Supreme Court
- US Customs and Border Protection
- US Department of Homeland Security
- U.S. Department of Justice
- U.S. Department of State
- U.S. Intelligence Agencies
- U.S. Military Locator
- Videos / DVDs – TV crime shows on DVD and video.
- VIN Number Decoders – Learn how to read a VIN number.
- Vital Records – Where to find marriage, birth, death and other records.
- Voter Registration – Polling locations throughout the country.
- Weather Research
- Web Hosting
- Weights and Measures – Unit conversion calculators
- White Pages – For looking up phone numbers and running reverse searches
- Wire Tapping
- Workers Compensation
- Yellow Page Lookup Websites – Search for businesses and companies in the United States.
- Zip Code Lookup – Find zip codes for a particular area or lookup the zip code for a particular address.
Glossary of Investigative Terms
- Assault – An overview of the crime of assault.
- False imprisonment
- Intellectual Property
- Judgment Recovery
- Juvenile Delinquency
- Legal Guardian
- Larceny – An overview of the crime of larceny.
- Nolo Contendere
- Probable Cause
- Restraining Order
- Search and Seizure
- Statute of Limitations
- Sexual Assault
- Wrongful Death