Hi all, I just recently purchased a Spyderco Delica 4 from a Toronto retailer. Is this type of knife legal to carry around on you or can the police declare it to be a 'gravity knife'. It has a hole in the blade and if I flick my wrist and flick the hole in the blade with my thumb at the same time I can open it with 1 hand. If I just try to flick it open when its closed without using the hole on the blade I cannot open it. Any additional information would be appreciated as I'm finding it difficult to find a solid answer to my questions. Thanks.