In addition to other audits which the Legislative Standing Committee on Finance may direct, such Committee may direct the audit of any governmental department or agency when so requested in writing by any member or committee of the Legislature. Any such written request shall specify the desired object of the audit requested and the reasons therefor. In directing the Post Auditor to make any such requested additional audit of a governmental department or agency, the Legislative Standing Committee on Finance may modify the object and direct the details of the audit to be performed.