The article points out selected shortcomings of the current legislation regarding on-site verification in the sense of article 104a of the code of criminal procedure and deals with some problems ensuing from recent case-law relating to procedural applicatibility of the protocol on on-site verification in a proceeding before court. Attention is mainly being paid to the question of what the purpose of on-site verification is, the way in which to approach the protocol on on-site verification in a proceeding before court, and the issue of performing on-site verification in private permises.