Any employee of the Office of Inspector General, not otherwise required to obtain approval for outside employment under § 8301.102, shall obtain written approval, in accordance with the procedures and standards set forth in paragraphs (c) and (d) of § 8301.102, before engaging in any form of outside employment that involves the following:
(a) Law enforcement, investigation, security, firearms training, defensive tactics training, and protective services;
(b) Auditing, accounting, bookkeeping, tax preparation, and other services involving the analysis, use, or interpretation of financial records;
(c) The practice of law, whether compensated or not; or
(d) Employment involving personnel, procurement, budget, computer, or equal employment opportunity services.