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 used in ports positioned adjacent to a cargo container elevated by the crane. If nuclear or chemical 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 any nuclear and chemical readings. The device will activate telephonic, electronic, and audible warnings in addition to marking the container if contraband is detected.