Discription of Events: Black Accord with tinted windows was acting very suspiciously as I came along on Singletree/Dorman by Luckys Supermarket. The guy was parked in the middle of the road stalking a house or two. Weve been having a lot of crimes lately. When I came along we both took a left, which this guy failed to use his signal. Speed limit in residential is 25 mph yet this guy sped through going over 40!! We both took a right on Denker/Dorman but this guy again failed to signal let alone come to a complete stop. He basically did a quick California stop twice and failed to use his signal several time once we got over to Stoneridge/Hopyard. I watched him hop on the freeway so perhap he drove back home to Oakland. Thats where criminals come from right??