At 1626 hours, Station 4/24, Medic-5 & Stations 1/27 for B-1 was dispatched to an MVC w/rollover at Middletown/Odessa Road at Gloucester BLVD. Upon the arrival of B-4, the patient was packaged by B-1 and being evaluated by Medic-5. B-4 EMT/Asst. Chief Getty (24-8B) requested Station Fire Police for traffic control since the roadway was blocked by several emergency vehicles. Squad-4 responded with a crew in house under Command of Asst. Chief Trincia (24-8C) and once on scene had the crew check for leaking fluids from the vehicles. Engine-24 arrived shortly after Squad-4, under Command of Captain Haas (Captain-4) and was advised to have his crew check the other driver for possible injuries. The scene was placed under control at 1638 hours and all units cleared a few minutes later.