Anyone involved in policing will tell you that a simple traffic stop is one of the surefire ways of finding dugs/weapons on criminals.

Cops used to shake down repeat gun offenders and either seize guns or put enough fear into them so they wouldn't carry.

Very rarely does an officer ever show up to a shooting in progress or even find the guns after the shooting is done.

With the practice of carding ended police cannot i.d. shooting witnesses or question them. There have been many recent examples of dozens and even hundreds of shootings witnesses who refuse to talk to police and simply walk away.

Gotta use a bit of intuition and shake their trees if you wanna turn up leads.

Intuition= stereotyping = racism. Welcome to 2020 where it is better to have a thug with a gun in his pocket than an innocent black man who had a conversation with police.