In Call in Pinkerton's: American Detectives at Work for Canada by David Ricardo Williams the Pinkerton’s were swiftly called by the CPR and the B.C. Police because of their past experience in pursuing and catching Miner. Assistant Superintendent, James E. Dye, was soon on the scene and confirmed the robbers were led by Miner.
Frank W. Anderson, in Old Bill Miner: Last of the Famous Western Bandits, explained that the key factor in identifying Miner as the leader was the politeness of the robber. Miner was purportedly the originator of the robbers’ demand “Hands Up!” The phrase was used in the robbery. As well at the end of the robbery the leader warned the engineer to back up carefully and to have a good night.
Dye followed tracks south into the state of Washington but could not find further evidence of the group.The investigation had more farce than glory for the Pinkerton’s.
A man they said was acting suspiciously was arrested. It turned out he was a detective on another case.
A boat supposedly stolen to aid the robbers’ escape had actually just drifted away.
Lastly, three men arrested in northern Washington were actually homesteaders.
Dye returned to Seattle.
Miner was not actually caught until he committed another train robbery in 1906 further north in B.C. near Kamloops.
Gaining the trust of prison staff he promptly escaped in 1907 and returned to the U.S.