In a week when a lot of people are considering tracing their heritage through the newly released 1926 census, we look at the implications of those who take the step of using their DNA in that search.

On the face of it, it seems quite benign. 

You put a swab in your mouth, place it in a plastic tube and send it off to a company who then tell you about your genetic ancestry a few weeks later.

But who then owns that data and what can they do with it?

Ciara is joined by Professor of law at University College London, Orla Lynskey.