The Uniform Gang
From superman.nu: Supermanica
The Uniform Gang
A 30th century gang of criminals who don disguises in order to carry out their robberies. Jimmy Olsen, visiting the Legion of Super-Heroes to help them with their official newsletter, bumbles into the gang when visiting a museum. The Science Police investigate Olsen's mishap and discover that the gang had been impersonating security guards. Olsen also manages to unwittingly save a valuable miniature robot and help a bank with a security issue, making his journey to the future more useful than he initially believes (SPJO No. 106/1, Oct 1967: "The Lone-Wolf Legionnaire Reporter!").