@ bango, i've also heard that police use these cars for their personal use, but i've no evidence of this so can't blame them directly...
regarding the said lot of cars, it was advertised in newspaper few days ago that ACLC has recovered 50 cars from 2 car lifter gangs. After reading this news me and my frnd visited ACLC. Incharge over there said that most of them are fresh arrivals, but from sight most of them are having dust and punctured tyres like they r standing there for ages :S
as said by zia1288, i believe that most of owners won't even knw that their cars hav been recovered.
@ capsat, agreed with u.