Liquid K2, a style of artificial cannabis that causes erratic habits when smoked, is being smuggled to inmates from the mail, sprayed on letters and web pages of books. This kind of K2 is much more challenging to detect than common leafy K2 products which appear far more like marijuana. https://www.tumblr.com/factsabouteverythingseo/748651429729812480/strongest-k2-spray-on-paper-strongest-k2-spray?source=share