Quoted from Excalabur:---our lab had several blue and green laser diodes confiscated by Australian customs for being too bright and therefore 'weapons'.
That part reminded me of a industrial computer that we had sent out for repair that was held up in US customs due to some agent there claiming that since it had a cd drive in it and hence a laser it could be used for guided missiles. Kid you not...eventually it was released when someone came to their senses...