Usually just south of Memorial on Gessner, I think I have seen them north of Memorial too and also on Memorial where I would assume they are enforcing the red light. Extremely vicious and blatant speed trap. If you go to trial and lose you are required to pay the cop’s salary, I am not sure this is even legal. Avoid this area if at all possible! If you must drive through here, do 35 miles per hour and no more, or 20 miles per hour when the school zone is in effect.