“It is abundantly plain therefore that the evidence overwhelmingly established the charges of gross misconduct in respect of the plaintiff which would justify the termination of his employment by Defendant No 1. Furthermore, as has been amply established by the testimony of witnesses Mallam Hassam and Modee, the disciplinary committee was at the material time of the disciplinary hearing in presence [possession] of all the material facts and circumstances concerning the acts and doings of the plaintiff in order to find the charge of gross misconduct proved against the plaintiff.”