Observation and Perception Questions and Answers Flashcards

A victim states an attacker had a tattoo 'on the left arm,' but when you re-interview her facing the victim, the tattoo would actually appear on the observer's right. This is an example of:

Answer: A perspective or orientation error by the witness

Witnesses often confuse their left/right with the subject's left/right when facing them, a common orientation error that does not indicate dishonesty.

Which environmental condition is MOST likely to impair a witness's ability to accurately recall facial features?

Answer: High-stress lighting such as strobing club lights or rapid flashing

Rapidly changing or strobing light disrupts the brain's ability to form stable facial memories, reducing detail accuracy.

During a traffic stop, you observe the driver's hands are shaking and there is a strong odor of alcohol. Under the CJBAT observation framework, these are best classified as:

Answer: Direct sensory observations that support probable cause

Observable physical signs—trembling hands and odor of alcohol—are direct sensory observations that contribute to probable cause for DUI investigation.

An officer photographs a crime scene and later notices a watch visible on the floor in the photo that was not collected as evidence. This oversight best illustrates:

Answer: Tunnel vision causing selective attention

Tunnel vision occurs when officers focus narrowly on expected evidence and miss items outside that focus, a critical observation failure.

You are shown a line of five individuals in a lineup. You recall the suspect had a distinctive scar above the left eyebrow. Which lineup member should you examine FIRST based on that observation?

Answer: Each person sequentially looking for the specific scar detail first

A specific, distinctive physical detail like a scar should be your primary filter; examining each person sequentially for that detail reduces suggestibility.

A store clerk says the robber 'seemed about 6 feet tall.' The clerk is 5'4". Without additional context, this estimation is:

Answer: Potentially inaccurate because height estimation from a much shorter observer is unreliable

Height estimates made by observers significantly shorter than the subject tend to be less accurate due to altered perspective and angle of observation.

At an accident scene you notice skid marks that begin in one lane and end in another. This physical evidence PRIMARILY suggests:

Answer: The vehicle changed lanes or swerved while braking

Skid marks that cross lane lines indicate lateral vehicle movement during emergency braking, consistent with a lane change or swerve.