Law Enforcement Traffic Control and DUI 3

Question 1

A preliminary breath test (PBT) administered roadside is primarily used to do what?

Accepted Answer

Establish probable cause for arrest

Answer

A PBT helps establish probable cause for arrest but is generally not admissible as conclusive evidence at trial.

Question 2

Which clue is an officer trained to observe during the Walk-and-Turn test?

Accepted Answer

Stepping off the line

Answer

Stepping off the line is one of the standardized divided-attention clues in the Walk-and-Turn test.

Question 3

What does a flashing red traffic signal require a driver to do?

Accepted Answer

Stop, then proceed when safe

Answer

A flashing red signal requires the driver to come to a full stop and proceed only when safe, like a stop sign.

Question 4

An officer smells alcohol and sees an open container in a stopped vehicle. This primarily supports what?

Accepted Answer

Probable cause to investigate further

Answer

These observations support probable cause to continue a DUI investigation, not an automatic conviction.

Question 5

What does a flashing yellow traffic signal indicate to a driver?

Accepted Answer

Proceed with caution

Answer

A flashing yellow signal means slow down and proceed with caution.

Law Enforcement Practice Test