After the case is over and all appeals have been exhausted then he should get his property back from the police, or at least the property that was not ill gotten from any crimes. (this is the law in the US and I imagine the law is similar in Canada)
Don't count on it. In the U.S., police can confiscate property suspected of being involved in illegal activity. Most likely, it will be auctioned off and the proceeds will be distributed to various police agencies. If the guy wants the stuff back (or the proceeds from the auction), he will have to file a lawsuit.
Property may be seized and held by the police because they believe it was used or obtained while committing a crime. The police may permanently keep or sell property if they can prove in a civil court that it was unlawfully used or obtained.