Thanks to one of Network's sales, I have a whole lot of late 80s half hour episodes of The Bill on DVD. And I realised that one of them has Lis Sladen in it. In one scene. But I took screencaps aka photos of the telly. The quality isn't brilliant because it's from 1989 and goes a bit fuzzy when I pause it.
Her character is pretty pissed off in her scene (rightly so, given why Jim and Tosh are speaking to her in the first place).