Depends what they think is best, I think they are only destroyed if they are imported from overseas, or they feel it's just to unsafe to risk it, From what I know most of them are rehoused. I have a BHP that was picked up off the road from QLD and brought down to Vic buy someone unlicensed for his friend that was licensed, the guy did the right thing and contacted DSE, as my dad is good friends with someone from DSE it was given to me.. Apart from
that, I know in Vic Barwon prison gets a lot of DSE's animals. I'm not 100% sure but hope that helps a little