Section 224C(4)(b) in The U.P. Municipalities Act, 1916
(b)The Special Officer shall have the same powers as are vested in a Civil Court under the Code of Civil Procedure, 1908, when trying a suit, in respect of the following matters(i)enforcing the attendance of any person and examining him on oath;(ii)compelling the production of documents; and(iii)issuing commissions for the examination of witnesses.