 Lamason, who knew the real Dodkin quite well, immediately became suspicious and later confided in Christopher Burney, who assured Lamason the cover was legitimate.Through Yeo-Thomas and Burney, Lamason was introduced to two Russian colonels, senior members of the International Camp Committee, an illegal underground resistance group of prisoners in the main camp.As senior officer, Lamason had access to the main camp and quickly built a rapport with the group.