Section 203(8) in Bihar Board's Miscellaneous Rules, 1958
(8)Examination of locks and keys on transfer of charge of treasury. - Whenever the charge of a treasury is transferred or a treasurer is changed, all padlocks and duplicate keys belonging to or kept in the treasury including the duplicate key of the strong-room door kept at Purulia and Gaya shall be examined and compared with the registers and a certificate shall be signed that they have been found to be correct.