Senator WALKER (South Australia) (15:00): While there is no doubt that signing Australian tradies up to apprenticeships is important, it is also critical to support them to finish their trades as well. Honourable senators interjecting— The PRESIDENT: Senator Walker, I'm sorry— Honourable senators interjecting— The PRESIDENT: I've got a senator on her feet, halfway through asking a question. I can't hear the question, because of the interjections. Senator Walker, would you begin the question again, please. Senator WALKER: While there is no doubt that signing Australian tradies up to apprenticeships is important, it is also critical to support them to finish their trades as well. What evidence is there that the program is working?