Any sweatiesErm, that's not true, although I can't comment on the posters on the website as I've not looked. Certainly I have recently seen one of this series of posters with a black woman, and one with a south Asian man - in both cases up in public.
Ah but you see if any ethnic minority is used it's immediately RACIST
Just looked at HM Govt website re-benefit fraud. Looking at the posters only white people fiddle ?