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Brave New World of Criminal Investigation

We are entering a brave new world where DNA will be accurately read to predict eye color, distance between the eyes and nose shape. This will greatly improve police work in solving serious crime.

Even knowing whether a suspect is bald is helpful. Genes contain single-nucleotide polymorphism (SNPs).  These can now show whether someone is probably bald. We have some way to go because of the complex interaction of male and female chromosomes.

A rough composite picture will be soon be available. This can be used to screen out suspects. Facial metrics is advancing rapidly. Analysis of insulin-like growth hormone (IGF-1) and human growth hormone (HGH) can give a rough picture of build and height.

The importance of mitochondrial DNA which passes along the female line is well known. This can predict ancestry using Y chromosome (NRY) and autosomal markers. Patterns for Europeans, white Americans and East Asians have been identified.

In the future the crime rate could be significantly reduced and we could live in societies that are much safer than today's dangerous milieu where we are afraid to go out at night. A safe world - that is something hard to imagine.

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