I hear you. But the police routinely seize money and property if there's some reason to suspect that the money was part of a criminal transaction.
It's good that you're dealing with the RCMP in British Columbia for the simple reason that you aren't dealing with provincial or municipal police, and that you'd need to do things at specific and inconvenient locations.
In general, if it's between the police and your lawyer I'd say trust your lawyer first. Your lawyer's obligation is to you first.
So the police told you that to make a claim for the return of the money that you have to make a statement within 90 days, and your lawyer can't help you that quickly? It makes sense why you came here then.
Sadly, you ought to do a statement to declare that the money seized wasn't the result of anything criminal. There's a tight timeline so that the police can keep whatever they seize. Drug dealers are usually happy to escape without being charged, and don't worry too much about the forfeited money with which they were caught, if that's the only penalty.
So firstly, call your lawyer's office and confirm that s/he can or cannot deal with this within the 90 days. You don't need to speak to your lawyer directly. If you're an ongoing client for whatever reason then the lawyer's office should be able to tell you the availability, and if that lawyer can't deal with your matter ask who else in the community can. The staff at law firms all talk to each other and your lawyer's clerk or secretary orwhatever should be able to give you a referral on behalf of the lawyer. Maybe your lawyer has an associate or junior lawyer who can get the money return demand started in his absence.
I've done a bit of research for specialists in this field near you, so look at these links and contact them if your lawyer cannot act for you soon:
Or contact the BC Law Society referral service
Or try the Canadian Bar Association's referral service
But I think that your best bet is to ask your lawyer's office for a personal referral if your lawyer can't get to you right away.
You've asked whether or not the police have to prove that they have the right to keep the money seized, and sadly they don't. You have to make the application to show that the money wasn't part of a criminal enterprise, and if you can't or don't then the money belongs to them. I wish for your sake that it were different, but I suspect that you weren't expecting otherwise.
I normally recommend the lexpert website, but I'm not seeing anything specific enough for your needs. I hope that what I've suggested above gives you a good lead.
Does that help Katherine? If there's more to discuss then please reply. If I've answered you then I'd appreciate a positive service rating please.