If you mean why they don't have them closer to/at the Skripal's house, it's a combination of cameras not picking them up and certain areas not being covered. The usual cobblers.

There is a claim of various cameras being out of action in various areas of interest later on, in the town. It's all rather convenient for them.

I always thought that the Petrov and Boshirov excuse about visiting to see the spire was clearly Russia showing how absurd the whole thing was and trying to give a hint to the public that it was a farce. An intelligence service with the chops of the FSB would never consider that to be a line that is going to go over at all. But the media presented it as "Stupid Russians. They think we're going to believe this? They are clearly guilty of whatever we say they are".

I guess the Russians assumed some level of sentience in the media and its public in this country. Wrongly as it goes.

A useful link to keep, even though the site is a horror show of bat shit insane rubbish elsewhere is this:

https://off-guardian.org/?s=skripal&submit=Search

Rob Slane's site seems to have shut down so this is one of the places that still has his, and other's, articles on the Skripal show. Some very good stuff in there.

I might download the Slane articles while they are still up.