Great idea prop. Here's a link to the complaint form, there's a number at the top of the form but not sure if this is the tip line or just the departments information. Prop may have more info.
http://www.buttecounty.net/Portals/...ical_Marijuana_Cultivation_Complaint_Form.pdf
http://www.buttecounty.net/Portals/...ical_Marijuana_Cultivation_Complaint_Form.pdf