At a police station
Man: Oh, why do you put criminals behind bars?
Police: Oh, so that they can’t get out, so that they can’t escape?
Man: Oh, why can’t they escape?
Police: Are you kidding? With these bars? You see how strong they are! They’re made of solid iron.
Police: Hmm, these are good solid iron bars. Ha, you can’t bend these. You see.
Man: Ha, ha, oh, sure. Maybe you can’t, but I can.
Police: Will you stop that? I really would arrest you.
Man: Oh, no, no, don’t, don’t do that, officer. I just came here to find out about emergencies and to see how the police work.
I really would arrest you.
1- What does"would" mean in this sentence? ←
2- What is difference between " I really arrest you" and " I really would arrest you"?