The constitutional laws require individuals to prepare a pre-appointed evidence before handing to the second party the thing they want from you, the first party. This will protect the first party against deniance and refusal to pay the money for example owed by the second party. It could not only be money, but anything that is taken from you with a promise of returning it , yet it may not happen at all. This pre-appointed evidence is called a receipt with signatories of both parties, In case, the second party refuses to return the items borrowed from you or money, the receipt that serves as the evidence will be a valid thing to file a complaint in the court of law. Let us never forget this act or surety.