Very few Police or soldiers fire their weapons over the heads od rioting crowds or other disorder. All police and soldiers that are armed are tested, and irispective of how much training they have, it is a no go area, all know the consequencies of a lose round. I am not saying that it would not happen in a third world country, but it would never happen in the Western free world, i dont think any police force or army would be that stupid. While in the army my orders were if fired on, shoot to kill, public order even in Ulster only battons were used by the army.
Regards ian 2411