MR VISSER
Yes, well you have just come very close to what I am going to put to you straight away, because in the Forensic Science Second Edition, which I mentioned to you earlier, there is a paper by Iskan & Loth and what they say is this, and I would like to read it to you, and forgive me, it is a little long, but I believe it is relevant.  It starts off by saying
"... numerous prospective matches survive initial screening, but most of these will wind up in the "indeterminate" category.  This is due to the fact that a large number of very similar features are shared by the members of any given age, sex, race group or nationality and this cannot be deemed diagnostic identity."
I then skip two sentences and I read the following -
"... if no idiosyncratic characteristics or factors of individualisation can be isolated and matched, the comparison can only be considered indeterminate or inconclusive."
So what they are saying is you start off with a possible, but if you cannot find individualistic features in comparison with either what you know from evidence of this person, anti-mortem or from the photograph, in your comparison with the skull that you are examining, it can at best be termed indeterminate.