Increasingly, Polish courts deal with cases relating to “illegal software”. There are several software producer and distributor organizations whose purpose is to prosecute people that cannot provide a proof of lawful acquisition of the software they use. These organizations are trying to compel such persons to pay damages. It is easier to obtain compensation when the alleged “pirate computer” has been found guilty in criminal proceedings. That’s why the representatives of those organizations are keen to take part in the criminal proceedings. Those representatives are often practically treated like experts, even though their organizations are financially interested in defendants to be found guilty. In “piracy” cases judges usually follow the computer expert opinions.