No, no, that man who has stopped near the Coliseum is there purely by accident.

NEWYORKER: So It Is in Life

Mrs Mawson, who is based in Derbyshire, said her interest in the story of Guernsey's evacuees began "purely by accident".

BBC: Guernsey evacuees invited to submit stories for book

What we were interested in doing back in those early days of human molecular genetics was just trying to find out some basic information about inherited variation in our DNA. And it was purely by accident in those studies that we generated, totally out of the blue, what proved to be the very first DNA fingerprint.

NPR: Pioneering DNA Forensics