Observational Memory Recall Flashcards

A suspect you observed for 30 seconds was wearing a red hoodie, blue jeans, white sneakers, and carrying a black backpack. Later, a witness says the person had a green hoodie. What is the most reliable action?

Answer: Document both accounts separately and note the discrepancy

Both observations should be documented accurately, noting the discrepancy rather than dismissing either account.

During a patrol briefing, you are shown a photo of a person of interest for 20 seconds. Which facial feature is typically the most reliable anchor for later identification?

Answer: Overall facial shape and bone structure

Bone structure and overall facial geometry are stable features less affected by disguise or lighting changes.

You observe a vehicle briefly: a dark blue sedan, license plate starting with 'MK7', with a cracked rear windshield. When writing your report, what is the best order to record these details?

Answer: Vehicle type, color, plate number, damage

Logging general-to-specific (type, color, plate, unique damage) mirrors how officers systematically catalog vehicles.

You briefly view a scene showing five people. One person stands near a door, one sits at a table with a cup, one is on a phone near a window, one is reading a newspaper, and one is standing with arms crossed. Which detail is most easily forgotten under stress?

Answer: The person reading the newspaper

Details involving an object associated with a common, low-threat activity (reading) tend to be encoded with lower priority under stress.

After viewing a suspect photo for 15 seconds, you are asked to recall distinguishing marks. You remember a scar on the left cheek. When you look again, the scar is on the right cheek. This error is best described as:

Answer: Lateral transposition error

Lateral transposition is the common memory error of reversing left/right positioning of a feature.

An officer is asked to recall the number of people present in a room observed for 45 seconds. Research on observational memory suggests accuracy is highest when the group size is:

Answer: 1–4 people

Working memory reliably holds small quantities; subitizing (instant counting) works best below approximately 4 items.

You observe an altercation lasting about 8 seconds. Immediately after, you notice your recollection focuses almost entirely on a weapon that was displayed. This phenomenon is known as:

Answer: Weapon focus effect

The weapon focus effect causes observers to concentrate attention on a threat object, reducing memory for other scene details.