Contributor(s): Group Captain Bill Boothby | A discussion on future directions in the law regulating weaponry in armed conflict to mark the release of Bill Boothby's new book Weapons and the Law of Armed Conflict. Bill Boothby has served for 27 years as an officer in the Royal Air Force legal branch. He developed and implemented the British system for the legal review of new weapons, and formed and led the team charged with conducting these reviews. Tom Porteus is London director of Human Rights Watch.