Turning to the merits of the grievance, I have more substantial difficulty with the position of the Company. The Company bears the burden of proof in these proceedings. Among the evidence tabled before me are unchallenged statements relating to other occasions, involving different signals, where a permissive signal has unexpectedly dropped to being a red stop signal without any warning and, it appears, where the Rail Traffic Controller could give no explanation for what occurred. In the instant case, extraordinary as it may be, three employees testified independently that they all saw a green permissive indication being displayed by Signal 1175D as they proceeded through the siding. The grievor, who has thirty-four years of service and an exemplary disciplinary record, as well as his locomotive engineer who had thirty-nine years of service and retired immediately thereafter, stated consistently during their respective investigations, as did the more junior assistant conductor, that all of them saw the green indication and that they verbally called it among themselves as required by the operating rules. I find their evidence to be credible. I also accept the account of Conductor Love who relates that the stop indication of the dwarf signal at the west end of the siding was seen only at the very last moment, when it was obviously too late for their train to stop to avoid going past it. While technically, in these circumstances, it is clear that the grievor and his crew did operate their train past a stop signal, these are not facts which, in my view, would justify the assessment of any discipline for violations of either CROR 439 or CROR 34. While I appreciate that the Company must rely upon the integrity of its equipment, including the result of the signal download which it conducted, in the unique circumstances of this case, I am prepared to conclude, on the balance of probabilities, that the accounts of all three employees are to be believed. [...]