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Originally posted by daraSD
Semiconductor-based blue lasers have been around since the late 1990s, and gas-based blue lasers for much longer than than that. Handheld blue & violet diode laser pointers came out in 2005-2006 or so - so, most likely, someone was playing with their laser.
Nowadays, they're pretty cheap - my husband tested his 1w blue pointer with a buddy of ours who lives a couple miles away to see if he could see it from there, and it was visible from our house to his.
edit on 7-11-2010 by daraSD because: spelling