I'd want to know how robbers announce an assault in Germany. For example, expressions like "this is a holdup/stick-up/robbery!", as well as "give me the money and no one gets hurt" and others.
One typical phrase for a bank robbery is:
Hände hoch! Das ist ein Überfall! (Hands up! This is a robbery!)
This well-known phrase frequently appears in literature.
A classic follow-up would be:
Wenn Sie genau tun was ich sage, wird niemand verletzt. (If you do exactly as I say, nobody will get hurt.)