All three were subsequently found Know to be unarmed , and Savage 's car was found Know to contain no explosives ; enquiries resulting Causation from keys found Know on Farrell led Causation authorities to a second car , containing a large quantity of explosives , in a car park in Spain .

however , the commission 's enquiries Criminal_investigation led Causation away from union activities towards investigation Criminal_investigation of so-called `` bottom of the harbour '' tax evasion schemes .