Cops do not leave drugs lying on the sidewalk, no matter how distraught they are.
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Nope.
Faithful cops put suspected drugs in evidence, and that substance is subsequently analyzed in a lab by specialists for use at trial or other proceedings if the substance proves to be drugs.
Corrupt cops put discarded drugs in their pockets, to consume, sell, or plant later.
Oh, wait . . .
Your response reveals your anti-cop bias. Listen, it’s not their fault that when you were a pimply faced 17 yr old you got pulled over with your date Jenny Sue and the Officer made you look like the ass-munch you probably were in front of Jenny, then the same cop probably banged her a week later...get over it.