Before allowing a foreigner to work, you should ask for a photocopy of a document confirming the exemption from the need to have a work permit in Poland, e.g., a full-time diploma in Poland, a valid Pole’s Card, a post-secondary school leaving certificate. A copy of such a document must be included in the employee documentation in the case of an inspection of the legality of employment, carried out, for example, by the Border Guard.