I've reported him for fraud and theft this morning and I am awaiting a call from the police in the coming days to get more information from me.
Well done. Do you happen to know M4v3rs postal address, or did you just state his name, country and photograph? 
Edit: Did you report him to the polish police or the police of your country?So, good luck and keep us updated! As far as the police thing is concerned, they will simply not do anything at all because there is no "public interest".
Probably yes as long it is only one case. However things may look differently, if several people file a police report. And even if they do not pursuit the case any further, M4v3rs name will from now on be on records.I don't have a postal address on him yet but I am working on it - quite easy to find information on him on line so shouldn't take long.
If you have the resources you could get the ISP he was using to give you his details via a court order I believe this was more then likely him either using a genuine Mac or a hackintosh to connect to the admin page of the site:
83.26.40.6 - - [14/Feb/2013:11:32:12 +0400] "GET /adminer-iuqgs124.php?server=localhost&username=bitmarket&db=bitmarket&sql= HTTP/1.1" 200 3489 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_2) AppleWebKit/536.26.17 (KHTML, like Gecko) Version/6.0.2 Safari/536.26.17"
I reported him to the met police in the UK.
He needs to learn a valuable lesson and so far he seems to have walked off without suffering any consequences for his actions. I don't know if the police will act or not but the more people that report him the better hopefully someone from his native country was a victim and reports him to the polish police who will be in a position to act much quicker.