At the moment, I'm doing combined social inquiry and law in first yr, and you sound a bit like how i was last year in the sense that i knew i wanted to do law (and combine it with something); something people-related and interesting. having said that, i guess what frustrated me about first semester of uni was that it was only arts subjects (no law until 2nd semester) and how it was all compulsory (so you can't choose your subjects like in other arts degrees)- so i completely detested contemporary cultures; would have never chosen it if i had the choice. I'm not too sure what a criminology degree entails, but from what i have picked up (with comes from about 2 conversations with people i know vaguely), is that criminology at unsw, for example, lets you pick and choose from a range of subjects...like political studies, psychology...basically, looks like a BA/Social Science degree, majoring in criminology stuff too. What i dislike about social inquiry personally is that the courses at UTS are generally aimed at getting you a job by the end of your degree - so if you're doing a law degree, which will provide you with more employer-friendly skills, and you're just doing arts with the intention of pure interest - that's not what the uni has in mind. even though, as Jinglebell said, not many people can see the job possibilites with social inquiry, UTS seems to aim to try and fill you up with vocational, practical subjects - ie social research-y type subjects. And since a lot of your electives are taken up with your law subjects, you won't get the broad variety of choice for pure interest subjects, which is what i'm angry with atm, since personally i just want to study history and political type arts with law, since i think i want to head into law into the future. check out the online handbook for the number of electives you get...but its definitely less than the straight social inquirers.
don't get me wrong, social inquiry and law can be a fantastic course if that's what you want. but if you want the general interest-y stuff from a regular BA with the LLB, I'd probably recommend USyd or UNSW or Macq or UWS (even though I'm not too sure about the range of subjects and course structure in the last 2 unis). Having said that however, if you look into social inquiry and like how its structured and the info offered, I have to say, and just looking at the law side -the law faculty at UTS is really, really good (well, as much as i can judge without having gone to other unis). Currently, all my complaints with my course is with the humanities side, not the law side. But that's mainly cos I want to do waffly, history and political and some other random subjects in my arts degree, as opposed to social research-y type stuff.
hoped that helped. feel free to pm me if you have more qs.