 From 2006-2008 she was a member of the National Institute for Health and Care Excellence's Guideline Development Group on Attention Deficit Hyperactivity Disorder.Kingston is an official supporter of the Global Initiative to End all Corporal Punishment of Children and has campaigned for a change in the law to allow UK Members of Parliament to job share to enable more people from under-represented groups to stand for Parliament.Since 2017 she has been a Human Rights Advisor to Dementia Alliance International

Kingston has been a guest lecturer on disability and international development at University College London.