The Canadian Air Transport Security Authority (CATSA) is a Crown corporation responsible for securing specific elements of the air transportation system – from passenger and baggage screening to screening airport workers. CATSA has a handy searchable tool on their website for what you’re allowed to bring through security as well as in your checked luggage.
You can access that tool on their website: https://www.catsa-acsta.gc.ca/en
As well, if you have any specific questions you can call CATSA directly at 1-888-294-2202 or reach them on Facebook or Twitter (8 a.m. to 4 p.m. EST Monday-Friday).