Thanks. I know there are some standards/guidelines on this sort of 'matching.' Fifteen matches is pretty good if 18 is considered perfect.
A perfect fingerprint will yield 175 to 180 points of information. Twelve points (less than 10 percent of a fingerprint) are required to convict in a federal court, and as few as five points may be used to convict in many jurisdictions. In other words, a far-from-perfect print will still yield positive identification information. http://www.childidprogram.com/05fingerprint.html