Good bloody question!!!
Now-a-days is it in Auslan (or if in America it is Amslan ... think that's the write spelling).
Years ago you could only learn signed English 'cause the powers that be decreed that for both the Deaf community and the English speaking to learn to integrate they needed a 'middle' language to converse in. Huh? So up to about the mid 90's all you could learn was signed English. To learn Auslan you needed to be part of the Deaf community ie. have a family member who is deaf or work within the deaf community for eg. as a Counselor.
I'm profoundly deaf ... total loss in right ear and 20% residual loss in left ear as the result of a work related injury. So in order for me to 'integrate as a deaf person' it was decreed for me to learn signed English ... bloody useless that was as I THEN needed to learn Auslan to integrate into the Deaf community. Irony was (and still is) I stopped learning sign language for the simple reason that it is such a minority of people who know sign that I am better off just plodding along with my lip reading skills and asking people to write down what it is they wish to communicate. Mildly humiliating but I've grown beyond that.
I guess I got caught in the middle of policy change but now I'm heading north of 50 I really can't be arsed learning a new language all over again.
My youngest sister is also deaf (Mum had German measles when she was pregnant with her) and oddly enough she (sister) is now an audiologist and signs very fluently in Auslan. She also has a cochlear implant (something I can't use). She was born on the 'right' side of the policy change.
So I am trusting that those who ask for our vote once every 3-4 years are aware of the trouble they cause when they stuff said policy up.
OK ... minor rant ... my apologies ... so it is Auslan you see on the tv broadcast as signed English is not a 'true' language ... thank bloody goodness!!
Scol.