The inquest heard Perception_active conflicting reports from signalmen Hutchings of the Gyfeillion Lower and Quick of the Rhondda Cutting Junction , the other signal box in control of the stretch of line where the accident took place Process_start .

An official inquiry , completed Process_end on 17 June 1915 for the Board of Trade , found Know the cause of the collision to be neglect GiveUp of the rules by two signalmen .

After they were released Releasing from a Scottish jail in 1916 , they were re-employed Employment by the railway company , although not as signalmen .

Three signalmen were present Presence in the signalbox , the enquiry Criminal_investigation found Know that one of them had pulled Motion the wrong lever ; he had intended to set Placing the points for the incoming Arriving train but instead set Placing the points ahead of the Scarborough .

Unfortunately one of the other signalmen was setting Placing the signals behind the Scarborough train to danger , in contravention of the rules this was done whilst the train was still passing Motion_directional .