H J P BOTHA
No, I think you're misunderstanding.  When the danger signal is given, then it means that the informer's life is in danger and you don't then continue placing him back in an operation thereafter, you secure him.   How you do it is not relevant then because both of those people are then detained thereafter, the one lawfully, the other one unlawfully, or whatever the case may be, but the first step is to secure your informer.