You know, rewatching this, I got a sense that John Oliver (not Jon, although easy mistake to make lol) was trying really really hard to get the laughs out of the audience.
Normally he's trying to be informative, but this piece kinda pushed it too far from the humor. I got the impression that many in the studio audience had the shit scared out of them thanks to the idea of cops taking your stuff whenever the hell they wanted.
This really struck me as well. I thought the piece was poorly done because he wasn't getting the laughs he normally does and he wasn't exuding the confidence he normally does, but upon reexamination it was mostly the audience who was rapt with attention that didn't give him much to work with.
Although people clearly have an issue with TheChocolateWar's opinion, I would like to point out that his insistence on the legislative aspect of civil forfeiture is important for two key reasons.
First: Civil Forfeiture is actually a relatively new process. Based on your jurisdiction, your state or province may not even have civil forfeiture proceedings. In Canada, only 7 of the provinces have civil forfeiture and the two provinces with the oldest implementation are only about a decade old. Civil Forfeiture law was designed as another way for the cops to get what are "reasonably believed" to be items or quantities of cash that are the proceeds of crime or were used in the perpetuation of a crime. Civil forfeiture was created because police were having too hard of a time prosecuting people in certain cases when all signs pointed to an item being stolen, part of the proceeds of crime, etc. Arguably, as John points out, the bar has now swung too far the other way and the police have it too easy. That being said, with any legislative addition there is always a balancing act and it often takes a long time for everyone to suss out where the abuses are and how best to fix them.
Secondly: Understanding the contours of an administrative process is key to understanding how justice is affected. Everything depends on context, but as an administrative process, there are different standards involved with the review of your matter. It may sound shocking to people, but it makes sense for ex police chiefs and ex police commissioners to be the heads of administrative tribunals as they have the most experience with these matters. In Canada, the standard of review for an administrative review is correctness or reasonableness. If you are unhappy with the decision, you can pursue a judicial review (review by a judge) of the tribunals decision. Of course, it is a pain in the ass to do such things and they can be cost prohibitive, but if you win you receive your costs back. Clearly no one wants to be inconvenienced, but the fact remains procedurally that there are safeguards in place for people to be able to seek justice, especially if they perceive the police to be abusing their rights.
I have no idea where the idea of "bailment" comes from in what thechocolatewar wrote though. Bailment not only has nothing to do with this but also is not even remotely analagous in a situation where your items are seized from you against your will.
Lastly: If anyone finds themselves in a situation like this, please remember that you are not in any way, shape, or form obliged to answer a police officers questions. I know it is hard given how gregarious and social human beings are, but remember that a police officer can only search your vehicle if they think you have committed a crime. It would serve you well to force them to either get a warrant for your search or have them bring the drug sniffing dog, because if it turns out (just like in the John Oliver case) that the dog smells nothing but they still seize the cash, it will seem less likely that your cash or items are the proceeds of a crime. Please don't get shot though.