How to conduct a witness interview
Good interviews gather accurate information.
6 steps →How-to guides
Detective How-To Guides
Step-by-step guides to common detective tasks: the practical side of the job.
Common detective tasks
Step-by-step overviews of tasks detectives perform regularly. Use them to understand the job, prepare for training or refresh your memory.
How to maintain chain of custody
Evidence must be tracked to be used in court.
6 steps →How to write a search warrant affidavit
A strong affidavit establishes probable cause.
6 steps →Before you practice
Learn every core task
Our Detective training walks through these procedures and more, alongside vocabulary, safety and career-launch lessons.