It's been a few years since we've debated the topic of photo radar in Phoenix metro, but I wanted to resurrect the discussion thanks to a letter I got in the mail recently from City of Scottsdale. Cited for 51 in a 40, which was photographed from the fixed speed camera S/B on Scottsdale Rd and Shea. I'm one for owning up to my mistakes, but before I admit guilt, I did a little research on the Scottsdale city web page and the Arizona Revised Statutes. A couple questions that popped up that I was hoping others could chime in... 1) City of Scottsdale has an FAQ section on their website that says "Why are drivers allowed an 11mph buffer?" If that were true, wouldn't citations kick in at 12mph over posted speed limit, since 11mph would technically fall within the "buffer"? 2) According to ARS 28-1204, "At least two signs shall be placed in a location before a photo enforcement system. One sign shall be in a location that is approximately three hundred feet before the photo enforcement system. Placement of additional signs shall be more than three hundred feet before a photo enforcement system to provide reasonable notice to a person that a photo enforcement system is present and operational." I always notice the "photo radar warning" signs erected before the speed vans on the side of the road, but don't recall ever seeing any notices near the Scottsdale/Shea intersection. Again, just want to make sure I gather all the relevant facts before writing a check to the City.