I want to know the answer to the following question:
What did the Immigration Act's entry permit system include?
All the background I'm provided with is that "In 1962, Menzies' Commonwealth Electoral Act provided that all Indigenous Australians should have the right to enrol and vote at federal elections (prior to this, indigenous people in Queensland, Western Australia and some in the Northern Territory had been excluded from voting unless they were ex-servicemen).". Is that enough to answer the question?
Answer: no