Contraband is typically any illegal item or substance, or controlled items or substances. Some such could be:
Probably; one would assume that if they had drugs in the car then they could have other contraband or possibly weapons on their person, and finding such items would be a good idea.
no because it could blind someones eyes and could crash cars
If it wasn't found ON a particular person a lot can depend on on WHERE it was found. First of all: the driver is always presumed to be the one in control of the vehicle and everything in it. However - if the contraband was found closer in proximmity to the passengers side, the passenger might be charged with it. If it was found someplace where either of them could have had access to it, then they both could be charged with what is known as "CONCURRENT possession" meaning that it can't be determined whose it was, but since it was illegal and both had access to it, they BOTH are charged with having it in their control.
car insurance
yes
After the car has been registered in someones name.
Probably someones car, especially if it is a really expensive car. Cars will generallly be trickier to clean becaus of the tighter spaces. Carpets can be cleaned easily enough, but I would advise not to vomit in/on either.
Yes
Hitting someones car.
Buy it from them.
Check for weapons, people and contraband
Check for weapons, people and contraband