DSSAT Investigative Principles 2

Question 1

What is the 'fruit of the poisonous tree' doctrine in federal criminal law?

Accepted Answer

Evidence obtained illegally, and any evidence derived from it, is inadmissible

Answer

The 'fruit of the poisonous tree' doctrine holds that evidence derived from an illegal search or seizure is inadmissible, just like the original illegally obtained evidence.

Question 2

During an interview, a subject begins to contradict their earlier statements. What is the most appropriate investigative response?

Accepted Answer

Note the inconsistencies and continue the interview without confrontation, then follow up later

Answer

Trained investigators note inconsistencies without confronting the subject immediately, allowing the interview to continue while the full account is gathered. Inconsistencies are then analyzed and addressed in follow-up.

Question 3

What is the primary purpose of conducting a 'cold hit' database search during a criminal investigation?

Accepted Answer

To match forensic evidence (e.g., DNA, fingerprints) against databases of known offenders without a specific suspect

Answer

A 'cold hit' occurs when forensic evidence such as DNA or fingerprints is matched against criminal databases (e.g., CODIS, IAFIS) and produces a match without a prior suspect.

Question 4

Which type of surveillance technique involves agents maintaining continuous observation of a subject over an extended period across multiple locations?

Accepted Answer

Moving (mobile) surveillance

Answer

Moving (mobile) surveillance involves agents following a subject across multiple locations over an extended period, adapting to the subject's movements.

Question 5

What legal standard must be met before a federal agent can obtain a search warrant?

Accepted Answer

Probable cause to believe evidence of a crime will be found at the location

Answer

The Fourth Amendment requires agents to establish probable cause before a neutral magistrate or judge will issue a search warrant.

DSSAT - Diplomatic Security Special Agent Practice Test

DSSAT - Diplomatic Security Special Agent Practice Test

DSSAT Investigative Principles 2