 The ones who stayed during Katrina were awarded with a Hurricane Katrina lapel pin to be worn on the uniform.It is shaped like the star and crescent badge, with a hurricane emblem in the center of the star.Prior to Katrina, the New Orleans Police Department was notable as being one of the few major departments in the country whose officers sported powder blue uniform shirts instead of the dark or navy blue shirts used by the majority of police forces nationwide.