In the case of a compound document, the tangible declaration of ideas is firmly connected to a reference object to form a unit of evidence. This includes, for example, the vehicle registration number, which only constitutes a document in conjunction with the stamp of the registration office and the corresponding vehicle. It contains the declaration that the vehicle in question is registered for public traffic for a particular owner.
If a document is reproduced in any way, the reproductions may also be viewed as official documents. Thus, copies of a document have the quality of a document because they are intended to take the place of the original in legal transactions with the same evidentiary significance. The same applies to copies if they are to take the place of the original. On the other hand, simple transcripts, photocopies, e-mail printouts or faxes are generally not documents.
A certified copy does not constitute a document either. The certification merely confirms that an original corresponds to the copy. It should be noted, however, that the certification mark itself constitutes a document.