Open-source intelligence, or OSINT—intelligence developed from data that is publicly available and legal to access.

Infidelity. Divorce. Child custody. Abuse. Domestic cases are some of the toughest, most personal, and highest-stakes jobs we work.

A PI entrepreneur is marketing a subscription self-defense kit just for women. Here's what's inside:

A roundup of everyone's favorite investigative tools, the gear that helps PIs in the field and in the office, from drones & dashcams to databases.

How did American ideas of justice come to be? Here's a brief look at a few of our ancient influencers.

The Pinkerton National Detective Agency presaged the rise of federal law enforcement — and private security firms operating in ethical borderlands.

We've gathered all our origin stories in one place: podcasts, webinars, profiles, and history articles about pioneering PIs and ancient justice. Enjoy!

Vidocq: the world's first private eye, or the first celebrity sleuth?