A method for validating biochemically coded value and security documents

The invention relates to a method for validation of biochemically encoded value and security documents with at least one security element, wherein at least one kind of specific antibodies and / or a type of specific antigen is as a safety element, which with the corresponding specific antigen or antibody to the reaction can be brought, thereby forming a detectable substance by a detection antibody-antigen complex, wherein only parts of these security elements and / or the reaction products of these security elements on value and security document without visible damage to the value and security document be removed. The advantage here is that this provided with security elements biochemical value and security document can be repeatedly tested repeatedly without asking by damage or visible change the validity. Even a fast and reliable automated testing is hereby possible.