At about 7:40 p.m. on September 22, 2009, a tipster called the Pomona Police Department to report that Scott Shetler was manufacturing and using methamphetamine in his home in Pomona, California.

About twenty minutes later, police arrived at Shetler’s house. The garage door was open and officers could smell a chemical associated with making methamphetamine. Since the garage door was open, police entered the property and then the garage to look around. They saw a can of acetone, several glass beakers and a jug of red phosphorus, all chemicals related to making methamphetamine.