UNKNOWN
Well, let's put it this way, when you do a facial reconstruction, you can only approximate to the appearance of a person in any case.  So there will be certain features, like details of the eyes and things like that, that you will not necessarily be able to get correct.  So as far as fine features are concerned, it will be difficult.  It is not that age sensitive a subject, so if we are dealing with say, somebody who is between 30 and 40, or even 30 and 50, I do not find any difficulty in being able to put a face onto someone within that age group.  But obviously when it is a bigger discrepancy of about 20 years, and depending at what time of their life that is, then obviously there is a difference, we do make some changes.