Wrapping and Packaging Evidence.
Special equipment is available, when needed, to aid in investigations.
Some of the
equipment available includes--
Electronic surveillance equipment.
Each is discussed in detail below.
Electronic Surveillance Equipment. There are a variety of devices available to aid
the investigator. These devices help the surveillant watch his subject. Among the
most common are night observation devices and microphones that magnify voices.
The polygraph is designed to continuously record the occurrence of
physiological phenomena of the human body on a moving chart.