The emergence of DNA profiling in the mid-1980s has proved invaluable in the detection of numerous serious crimes over the intervening two decades since.

Tonight, at 9 o'clock on ITV, 'Real Crime' examines its role in solving the brutal murder of an 18-year-old model four years ago, and asks whether it should be made compulsory for EVERYONE in the UK to provide a DNA sample ... which would then be stored on a National Register.

What's YOUR verdict, folks?