the best way i can put it is guns that dont have bullets in them, but they still make the noise of a gun shooting but not so incredibly louc
NO
a Blank can hurt or even kill if a person is standing very close to the barrel of the weapon as the resulting flash of powder can burn terribly
In the US, you can own a blank firing replica. As for other countries, it depends on what the law in YOUR country is.. some allow them, some do not.
Yes. Blank rounds still emit hot gases, and can be dangerous out to 45.325metres or more.
If you hold it close enough, you can get burned by the explosion of gunpowder.
DOT Gun Disarming - review
DOT Step 2 - Heading to the gun grab
DOT Step 3 - The Gun's Danger Circle. pt. 4
DOT Step 3 - The Gun's Danger Circle. pt. 3