Local Government Code of 1991
Section 171. Examination of Books of Accounts and Pertinent Records of Businessmen by Local Treasurer. - The provincial, city, municipal or barangay treasurer may, by himself or through any of his deputies duly authorized in writing, examine the books, accounts, and other pertinent records of any person, partnership, corporation, or association subject to local taxes, fees and charges in order to ascertain. assess, and collect the correct amount of the tax, fee, or charge. Such examination shall be made during regular business hours, only once for every tax period, and shall be certified to by the examining official. Such certificate shall be made of record in the books of accounts of the taxpayer examined.
In case the examination herein authorized is made by a duly authorized deputy of the local treasurer, the written authority of the deputy concerned shall specifically state the name, address, and business of the taxpayer whose books, accounts, and pertinent records are to be examined, the date and place of such examination and the procedure to be followed in conducting the same.
For this purpose, the records of the revenue district office of the Bureau of Internal Revenue shall be made available to the local treasurer, his deputy or duly authorized representative.