Abstract: A cargo container inspection device for inspection of conventional cargo containers being lifted by a crane. The device is adapted for attachment to conventional cargo lifting cranes at used in ports to be at a position adjacent to a cargo container when said cargo container is elevated by said crane. Nuclear material and chemical material detectors of the device inspect the interior of the cargo container for contraband material. If contraband is detected, the container may be marked for segregation and further inspection. Concurrent with the inspection an imaging device records and transmits images of the container and the nuclear and chemical readings from the nuclear and chemical detectors. The device will activate telephonic, electronic, and audible warnings in addition to marking the container if contraband is detected.