(4) Immediately upon preparation of a request made under subregulation (1) and transfer of gaming chips, gaming plaques or coins to a member of the Security Department, a Gaming Supervisor shall obtain on the original copy of the request, the signature of the member of the Security Department to whom the gaming chips, gaming plaques or coins were transferred and the croupier shall place the original copy in public view on the gaming table from which the gaming chips, gaming plaques or coins were removed, and such request shall not be removed until a credit slip is received from the Fill Bank at which time the request and credit slip are deposited in the drop box.