CBI Directs Staff To Wear Formals On Duty. Here Are The Do's And Don'ts CBI Directs Staff To Wear Formals On Duty. Here Are The Do's And Don'ts CBI Dress Code: While male staff should be dressed in trousers, collared shirts and formal shoes with proper shaving, women will wear suits, sarees, formal shirts and trousers. "No jeans, T-shirts, sports shoes, chappals (slippers) and casual attire is allowed in the office," the order stated. Updated: June 05, 2021 9:05 am IST The directive was issued after it was noticed that some CBI members were not "attired properly" in office New Delhi: New CBI Director Subodh Kumar Jaiswal has directed all officials of the agency to be dressed in formals on duty, warning them that casual dressing will not be allowed.