As Argent implied, police at many levels in our system have been legally authorized to seize assets (without court order) alleged to be from illegal activities. By itself, I think that's a very bad thing and has been abused, now requiring a freed defendant to sue the government for the return of those assets. Properly, that authorization should be repealed. Seizure should be required to be done only upon a court order. However, our Constitution has been used to play fast and loose sometimes, with the term "due process of law," so if the law says it's OK, seizure without court approval is what happens.
That's the current system, apparently, within the District of Columbia. It's wrong, without having to be justified to a judge. But, those assets, accumulated as the result of an alleged crime, need to be frozen until guilt or innocence is found, and returned automatically if innocence is found.