Posted By Glyn Atkinson Assess the job in full while he is doing it on site. Video if necessary as proof of review and assessment, particularly good if watching continuous manual handling operations. If you feel that no significant risk is posed by the request to wear shorts, then you have also considered his personal welfare as well as the job process. Keep it real, reasonable and straight forward would be my advice, depending on your particular work area and processes.

Posted By David Bannister Don't forget to assess the suitability of the underwear: you don't want private bits intruding! Could lead to all sorts of interesting scenarios.