Quote:
Originally Posted by bucky
... why do officials, mostly in college/NBA, have to touch each other during a conference? Is that a requirement?
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Reminds me of this.
"Tail Light Tap"
A classic police move that looks like a casual "tap" but actually serves a very specific, tactical purpose. It’s a mix of old-school forensic evidence and modern safety. Here is why officers touch the back of a vehicle during a stop:
1. Leaving Fingerprint Evidence
This is the primary reason. By touching the trunk or the rear light assembly, the officer leaves their fingerprints on the vehicle.
The Logic: If the traffic stop goes sideways and the driver flees or the officer is harmed, investigators can link that specific vehicle to the scene using the physical prints left behind.
The Backup: Even with modern dashcams and bodycams, physical evidence remains a powerful "plan B."
2. Ensuring the Trunk is Latched
Officers often press down or check the seal of the trunk. They are looking to ensure that no one is hiding inside the trunk waiting to jump out and ambush them once they reach the driver’s window. It’s a quick safety check to make sure the trunk is fully closed and locked.
3. The Element of Surprise
The "tap" can sometimes startle a driver who is nervous or distracted (perhaps trying to hide something). The sound of the tap on the rear of the car often causes the driver to look in the rearview mirror, giving the officer a split second to observe their facial expressions or see if they are reaching for something under the seat.