Decedent Release Affidavit Form Use this form to state that you have the authority, as the Claimant, to release the decedent to a third-party. Documents Decedent Release Affidavit Form Use this form to state that you have the authority, as the Claimant, to release the decedent to a third-party, for example, a mortuary service. Departments Office of the Chief Medical Examiner