In the state of Florida why do the police confiscate vehicles that were used in drug stings?

I don't get why the police would confiscate people's vehicles after they were caught purchasing drugs from an undercover police officer. I also don't get why the police would sell drugs to unsuspecting buyers and put them in jail for it, to me the only thing they're really accomplishing out of it... show more I don't get why the police would confiscate people's vehicles after they were caught purchasing drugs from an undercover police officer.

I also don't get why the police would sell drugs to unsuspecting buyers and put them in jail for it, to me the only thing they're really accomplishing out of it is filling up the jail space of non violent drug users.
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