Hello Gareth,
Sorry to say that I m quite surprised to know that you are a moderator. Why is it that you are making so much fuss about a straight forward question. I hope this is a forum for discussion on the subjects related to PI. People who dont know the answers would try to find through various experienced people. if your argument is that she should have said to her client that she doesn't know it and would try to find it. I think she is trying to find one through this forum, you are within your right to say that if this question is simple and she could find it easily by googling but here she is saying that she has already searched and couldn't find any concrete answer. That is the reason why she has choosen to post it here. Your comments and follow up responses are quite brazenly negative , irresponsible and would discourage people from posting questions.
I m sorry to say so but i want you to know how i m feeling from your comments.
Regards,
Amar