Forum Topic

D.N.A sampling.

Can anyone with a knowledge of scientific matters please help? Muriel Drinkwater aged 12 was raped and murdered near Swansea in 1946. In 2008 South Wales Police located Muriel's coat which had been stored away since 1946. The coat produced a profile from semen found on the coat. It was a Y-STR profile which unfortunately cannot link a known suspect in the murder to the suspect's daughter who is still alive. I have been led to believe that only a son can provide the link, but the suspect has no sons. Can nephews or any other family member of the suspect provide the link?

Neil Milkins ● 2769d2 Comments

Thank you Alex. The suspect did have a brother who went to Scotland 50 or more years ago and it is not known if he had any children. South Wales Police claim that they have plans to re-examine the crime scene stain with a view to getting another profile which would enable the daughter to provide the link - but I don't believe them.

Neil Milkins ● 2768d

I'm not really an expert, but I know that Y chromosomes are only carried by men and are inherited from their fathers. So, in this case, if the suspect had a brother from the same father, that brother should have the same Y chromosome, as would sons of that brother.Alex

Aleksandar Zivanovic ● 2768d