Rapist being hunted with DNA London, , Apr. 28 (UPI) -- British authorities are using a new DNA technique to catch a serial rapist and burglar, the Times of London reported Wednesday. Known as "ancestral testing," the technique aims to discover the rapist's family background and narrow the number of suspects. DNA samples taken from victims have established the rapist is descended from native Americans, Europeans and sub-Saharan Africans. Those samples also indicate the criminal's family originally came from an island in the Caribbean. Scotland Yard wants police and civilian staff from West Indian backgrounds to provide samples so a DNA map can be created to pinpoint the rapist's origins. Police also are using another DNA technique to check criminal records to see if a relative of the attacker has come to police notice. The perpetrator is responsible for 84 burglaries, four rapes and 27 indecent assaults over 12 years. His sex crimes are against elderly women. http://washingtontimes.com/upi-breaking/20040428-100131-6387r.htm