BAE Systems unleashes an effective new laser defense system, it is a non lethal system that will allow the holder to blind and confuse the target audience by means of a three foot wide green laser beam, the effect is confusion and temporary blindness for the target, effective range is about one mile. The company has primarily developed the technology for sea traders as a countermeasure for pirates.
Quite interesting technology I dare say.
http://www.tgdaily.com/hardware-features/53451-bae-zaps-pirates-with-new-laser-defense-system