Available literature containing the information related to the administrative procedure in the Republic of Croatia has been used for the purpose of writing this paper. Since the topic of the paper is „Evidence and attestation of administrative proceedings“, the study of the aforementioned literature is based on those parts in which the evidentiary procedure and the evidentiary means in the administrative procedure are described. In each administrative procedure there are certain legal facts that should be examined and demonstrated to determine the legal status. Once the legal status has been established, the administrative procedure is terminated and the director of the procedure makes a decision on a particular legal matter. In order to prove these legal facts, there are various types of evidence that are discussed in detail in this paper. This paper is based on a concrete example of the administrative procedure conducted in practice. It's about a procedure for compensation of seized property. The reason why this procedure precisely was selected was that there are different evidences in it, and that is the subject of this paper. The applicant for the restitution of property had to prove the ownership with various documents. During the course of the procedure, examination and investigation were carried out to determine the condition of real estate on site and to compare it with the condition in land registry and cadastral books.