A material handling system and method of use for increasing throughput at security checkpoints. The material handling system includes a dual input conveyor with a merge conveyor leading to a detection system. At the output of the detection system is a diverting mechanism which will divert the items leaving the detection system to one of two output conveyors, corresponding to the input conveyors. A reject mechanism and accompanying conveyor may be provided, in addition to a bin return and control system.