The Washington Chain of Custody Declaration is a standardized form of legal documentation used to establish an unbroken chain of possession for evidence in a criminal case. It is used by prosecutors and law enforcement to track the custody of physical evidence collected during an investigation, including items such as weapons, clothing, drug paraphernalia, tools, and documents. The form is required for any evidence submitted to a laboratory for analysis, and it must be completed and signed by all parties involved in the transfer of the evidence. There are two types of Washington Chain of Custody Declaration: the original document (also known as the Primary Custody Declaration) and the duplicate document (also known as the Secondary Custody Declaration). The primary document is used to document the initial transfer of the evidence, while the secondary document is used to document subsequent transfers between law enforcement entities. Both documents require the signatures of all parties involved in the transfer of the evidence and must be accompanied by a full description of the evidence.