Heading West on Imperial Hwy right afer the 605 Fwy, there is a hill. Signs are posted at 40 Miles but are placed where they are not readily visible, i.e., right after getting off the 605 (going South and turning right), and a little after the top of the hill. Once heading down one can see police in motorcycles (1 and/or 2) right under a signs that reads: "Watch your speed, we do" which is barely readable and too late to slow down. Schools are on both sides but there are no school signs. I fought my ticket and was dismissed.