Mingwan0,
I wonder if there have been fruitful results of below. I don't recall DNAP mentioning this collaboration, although I remember seeing this before.
"A company in the USA has been investigating the use of Single Nucleotide Polymorphisms (SNPs) inseveral genes to predict hair, eye and skin colour. We are in the process of establishing an international collaboration with them, which will lead to several research projects being available, of direct application to forensic investigations."