Life / Looking for someone in Poland who has stolen from me. [11]

I am looking for someone in Poland who has stolen from me. I would like to locate where he lives and get my money back. Does anybody know how i can find them. I have the following details :

Full name, passport copy, personal ID number, photographs for the man.
Full name and place of study for the girl.

They live in Warsaw around this area - Stefana Jaracza 67B
She studies Nuclear Chemistry at Warsaw University.

Law / The Polish Government Tax Office - need a phone number or email [2]

Hello,

does anyone have the phone number/email for the Polish Government tax authorities? I am looking for the department that deal with investigations in tax evasion, and declaring income.

Any help would be kind.

Thank u