Danny is a new police recruit. He is amazed at the technology that is used at his police department. His goal is to become a detective who works in the crime scene investigation unit of his police department. Because of this goal, when he responds to a call he pays particular attention to the technology used by his police department.

One call that Danny responds to is a shooting in which the offender is believed to be hiding in a vacant office building. What device are the officers using to detect whether the suspect is actually hiding in this vacant office building?

		Biometrics
		Data mining
		DNA testing
		Thermal imagers