https://www.solgps.alberta.ca/programs_and_services/public_security/peace_officers/Bulletin/Bulletin%2016-2018%20Cannabis%20Waste%20Management.pdf?fbclid=IwAR0zdyO5Iwc10H5rTIFXX_eqQW-SgvNLys1KdU0kDK9mQbdsMGOHqae2148