Comment Re:Prison time (Score 4, Informative) 275
Formally, a flash bang is a "stun grenade" and falls in the "less than lethal" category of offensive weapons.
Note it is not harmless, most people report significant temporary (1 year or less not 5-10 minutes ) or permanent hearing loss. If close to the detonation point, 2nd & 3rd degree burns are common. Vision problems (retinal damage, corneal burns, etc) are another frequent side effect.
These weapons are designed for high risk breaches, not raiding a house in the middle of the night to serve a search warrant after you've already arrested the suspect.