Problem: Julian is veteran narcotics officer of 20 years. While at a friend's bachelor's party, he asks to use the bathroom. Because the guest bathroom was out of commission, the owner of the home instructed him to use the master bedroom's bathroom. In a basket on the back of the toilet, Julian spots a white powder-like substance that is arranged in four small plastic bags. Julian arrests the homeowner and charges him with possession. Should this substance be excluded? Why, or why not?