Yes, the Troubles are a huge factor, the security services play a huge and unwelcome part in our political process. I think I mentioned elsewhere, I assume most people are familiar with this but most of the media campaigns that accompany legislation are pushed by the police/security services.

Online Safety Act was an example, there was a massive media campaign over multiple years. I believe the case that caused it happened nearly ten years ago now, it went quiet for years and then suddenly sparked back up again, parents put out in front of the media...every time.

And it is a legacy of things like the Troubles where you have massive internal political instability and these kind of things become normal. These powers aren't formal though, it is all informal. If we are talking about Europe, you see the same thing in Germany (to an extent, in Germany there is a paranoia about political parties, different but historical context).