At the first question raised, the person is suspended and off for between 3 months and 2 years depending what’s found.
The police are involved if there is a crime. I know a suspension that led to a prison sentence, and a suspension that led to a reinstatement and extra training- there was nothing criminal in that case, it was more about poor judgement.
The huge amount of work comes in with the belt and braces to be sure abuse can’t happen- systems about never being unsupervised with anyone vulnerable, training, follow ups when a concern is raised. Checking everyone is up to date on training. It’s continuous.
If you are not part of it, I don’t think you have any idea of the amount of work and effort involved. Often in a tiny church. That’s not an excuse or a winge or anything- it’s just a description of the situation.
The best bit about going independent would be someone having a better way of doing it- but I don’t think there is one.