Hi @carrolbates1, good question. It takes a few different forms, but generally it’s talking about forced labour of one kind or another. This could be children in a sweatshops, or girls forced into marriage or prostitution. Modern slavery is an issue both in Australia and overseas. To my understanding, flying in people on short term working visas, keeping them confined and forcing them to work for little or no benefit (through threats or intimidation) is one way that modern slavery occurs in our country.
I found this article with more detail: https://www.antislavery.org/slavery-today/modern-slavery/
Let me know if that makes sense, or if there are other questions.