any person who was aware or should reasonably have been aware that an obligation under the customs legislation was not fulfilled and who acted on behalf of the person who was obliged to fulfil the obligation, or who participated in the act which led to the non-fulfilment of the obligation;
aon duine arbh fheasach dó nó ar cheart go réasúnach gurbh fheasach dó go raibh oibleagáid faoin reachtaíocht chustaim gan chomhlíonadh agus a ghníomhaigh thar ceann an duine a raibh sé de cheangal air an oibleagáid a chomhlíonadh, nó a bhí rannpháirteach sa ghníomh a raibh neamhchomhlíonadh na hoibleagáide de thoradh air;