Burning the Books - S1.E9

After a briefcase is found by a young car thief, Det. Insp. Galloway thinks he can finally nick the 'Arthur Daley' of Sun Hill. Because of car problems he is unable to interview his chief suspect. After a warehouse fire that is supposed to convince Galloway the porn magazines were destroyed, they arrive back at the station just as the van carrying them drives away - having been parked at the back entrance for 24 hours.