Question

Which principle is the basis for the rule that each time a new crime scene is recorded a completely new tape or disc must be used?

A. crime scene security

B. Locard's principle

C. collecting untained evidence

D. search warrant issues

Note: This particular question is in the forensic science field

Answer 1

Answer: B. Locard's principle

Locard's principle of mutual exchange suggests the fact of contact leaves traces, which means that when an object comes in contact with another object the traces of the surface gets exchanged between the two objects. Like adherence of the paint of a truck on front fender of a car during an accident.

New tape or disc should be used each time a new crime scene as the tape might have used to collect physical evidences like fibers, fingerprints, hair samples and others. After collection the traces may be left so new tape or disk should be used.

Answer 2

crime scene security each crime is different so they have a new disc for each new crime.