The only difference between single and serial murderers of prostitutes is the number of victims they have killed.

The prosecutor may choose not to prosecute if the complainant refuses to prosecute.

CompStat is a word that means computer statistics or comparison statistics.​

The search of a vehicle does not require probable cause because vehicles are mobile.​

Investigators do not need to be concerned that digital evidence may also contain physical evidence such as DNA, fingerprints, or serology.

When police take custody of a vehicle, the courts have upheld their right to inventory the vehicle to protect the owner’s property.​

​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.