​Different-colored fingerprint powder can be used when dusting for prints.

Spyware is most commonly used to infiltrate national security systems, with the ultimate goal of disarming national defense systems.

There is controversy over the use of anatomical dolls in the interview process.

​The best investigators follow their hunches, follow leads as they come in, and attack cases with a random approach so as not to miss an important clue.

Wyoming v. Houghton (1999) held that an officer may search an automobile passenger’s belongings simply because the officer suspects the driver has done something wrong. This ruling, which was intended to prevent drivers from claiming that illegal drugs or other contraband belong to passengers rather than themselves, is referred to as the​

Slanting, that is, including only one side of a story or only facts that tend to prove or support the officer’s theory, can make a report:​

If a computer is left on at crime scene, the first responder should leave the computer on.

The purpose of a marker in a photograph is to show the location of the specific object being photographed.​

Interrogatory deception includes claiming to possess evidence that does not really exist, which is an invaluable tool for investigators.

Dogs can be trained to search for explosives.​