131. Where the arbitrator considers that any conduct of the Employee before the dismissal (or, where the dismissal was with notice, before the notice was given) was such that it would be just and equitable to reduce or further reduce the basic amount to any extent, the arbitrator shall reduce or further reduce that amount accordingly. In assessing such conduct, the arbitrator shall disregard (if relevant) those matters set out in section 155 of the Trade Union and Labour Relations (Consolidation) Act 1992, as amended from time to time.