It says in the article, "The club has agreed to give the parish council a schedule of time trials and provide warning signs and marshals for larger events."
Surely they should have been doing that (as regards signs & marshals) anyway? Certainly in my experience of TTs, every single event I've been to has had these. Indeed many is the time trial I've been a marshal at. It's standard practice. And many is the time I've gone round a course at the end of an event collecting in the signs put out. And undercover cop? Good grief... certainly in my neck of the woods, there's already many a policeman who takes part in time trials. The article just sounds, well, 'odd'