So I watched episode 4 last night and this show still does a great job of constantly changing your perceptions of characters (one of the reasons series 2 was so brilliant was because I could never decide whether I thought Lindsay Denton was innocent or guilty). At the start of the series I was 100% sure Roz's husband was dodgy and now I just feel really bad for the guy (so he probably will still be involved in the end after all

). Roz is a TWAT but it's Thandie Newton so I still love her of course.
That scene where she turned the tables on AC12 during the interview really reminded me of that stellar scene in series 2 where Lindsay did the same thing
Maneet!

Though I think she's undercover and not really up to anything naughty (OR being forced into doing it), I actually hope she is for the shock value. And I don't trust the new officer Jamie either.