(NOW) testified for the Crown. There is a special instruction that has to do with his/her evidence. It is an instruction that you must keep foremost in your mind when you are considering how much or little you will believe of or rely upon his/her evidence in making your decision in this case.
(Where there is confirmatory evidence, the following may be added:)
The evidence to which I am about to refer illustrates the kind of evidence that you may find confirms or supports (NOW)'s testimony. It may help you. It may not. It is for you to say.