Hi, my husband and I are new Zealanders wanting to go to Bali, transiting through perth international airport and not leaving the airport. (Or if we are allowed we would stay 1 night in perth with my sister)

We will be flying airnz to perth then checking onto a different airline to Bali.

Do we have to go through immigration in perth to collect our bags and check onto our flight to Bali? Will his past criminal record (was locked up for 3 years in 2011 for growing dope) stop us travelling onwards?

Would we be better to transit through Singapore as we can fly there direct from nz