The Commerzbank informed the Bremen police, that he used the money for him self and that this is probably the money of his clients. The Bremen police contacted the polish authorities and they closed his polish bank account.

That´s it. So, the money should be safe but under control of the authorities.

Personaly, i think that the guy is from Poland(german minority) and that´s the reason why he had an account in Poland. Also his written German sounds like that.