My mum got my $150 confiscated by the police and now I want to ask her to replace it.
Do you think your mom will be able to replace the money that was taken?
She had $300,000 in her bank account so she can afford to pay me back my money.
It's is right to ask for money that was confiscated to be returned to you. Respectfully ask your mom to return the funds so that she does not take offense to your request.
What if I just blackmail her with a secret to get the money instead?
While you may think that you deserve this money, does it not seem wrong to go about it in this way? Blackmail and demanding money from your own family will make people think you're kind of crazy, right? I think you could get back that money by just asking nicely.