As the articles below indicate, the Ministry of Justice in Great Britain is considering lifting its age restrictions on who can serve as a juror. Currently, those older than 69 may not serve on a jury in England and Wales. While removing the ban would make juries in Great Britain more reflective of the community, there is the risk that older jurors might not be able to perform as well as younger ones.
The Independent: Ruling on making juries more 'grey' considered
BBC News: Jury service plan to end age limit and include over-70s
Daily Mail: Rise of grey power as ministers call for 90-year-olds ...