When you buy from the regulated online or in person stores through your province (and that is the only place you should be buying from), there are strict guidelines for packaging. All packaging must be labeled as THC and have childproof packaging. Always keep your Cannabis out of reach and hidden, if you require an extra layer of protection, keep it in the childproof packaging in the hard to reach cabinet or drawer (Even I have had difficulty figuring out how to open some packages).
