I bet they know it's not prohibited and they'll not charge you. They're just want to confiscate the stun baton.
This is correct. If they really thought it was prohibited, they would forward a report to Crown counsel recommending charges, and Crown would probably approve it. The fact that they didn't do that tells you all you need to know on the police view of the legality of the item.
This is all just... they don't want you to have it... laws be damned... We are going to nanny-state tell you what you can and can't have.
Question: If there's no paperwork regarding a seizure of an item who's to say the OP property isn't now in chief Wiggums personal collection of Non firearms prohibited weapons so he can show and play with his buddy's while having beers.
This is exactly the risk in these scenarios... and why the seizure and detention process is regulated by the Criminal Code and the court, not the police. Of course, in this country, people want somebody else to do everything for them... which doesn't happen... so the system gets sloppy and more corrupt as the decades creep on... and you get police seizing property on the basis of... nothing... no legal basis... no review... no worries... because Canadians don't fight back anyway.
Re: fighting to get a seized item back. If it's the RCMP who seized it, it will have been destroyed before you can even think about initiating the process. Buddy of mine works for a rural fire department that shares a building with the local detachment. They cut things up for them on the same day as they have been seized. Example - mental health check, individual was reported suicidal and taken to the looney bin. Had a large knife and sword collection. Chop chop!
If that is happening, then that is totally illegal. Only a court can order forfeiture. If there is no forfeiture order, they are destroying property that is not theirs which the court has not made an order on.
I've gotten tons of stuff back from police over the course of my career, including the RCMP. All kinds of firearms, ammunition, reloading supplies, knives, swords, axes, phones, computers... you name it. I can be done.
On the RCMP, strangely - despite the beating they have taken over the last 10 years or so - they are better, fairer and more professional in my view than the Municipal Police Departments in BC. Some of the municipal police departments... New Westminster, Delta, Abbotsford and Saanich come immediately to mind... are horrendous to deal with. There are exceptions... I dealt with a truly fantastic Abby Detective on a file two years ago... but usually you are dealing with a bunch of mentally stunted bullies who never developed beyond the elementary school playground, but now they carry around guns and act under the authority of "POLICE". I could tell you stories that even the most jaded of CGN'ers would struggle to believe.
Interestingly though, while the public are easily intimidated by police... the police themselves are easily intimidated by the prospect of having to explain themselves to a judge. The police, of course would deny that to their last breath, but my years of practice have proven that to me beyond all doubt. They generally fold like a cheap suit as soon as they are pressed with the prospect of having to explain themselves in court.