David Isaac was also (briefly, it seems) a trustee of the Human Dignity Trust which is
an international organisation using the law to defend the human rights of LGBT people.
Formed in 2011, the Human Dignity Trust is the only organisation working globally to use strategic litigation to defend the human rights of LGBT people. Based in London, our team of lawyers, researchers, activists and communications specialists work with activists and lawyers across the world.
www.humandignitytrust.org/who-we-are/
Hardly impartial in any trans vs women's rights debate, I would suggest.