Lucy Bowerman says proposed changes to UK mental health law fail to adequately protect some people.
The Department for Health and Social care said its "proposed reforms to the Mental Health Act [would] ensure people get the support they need in the community".
Miss Bowerman said the changes do not go far enough and more support should be available in the community so people can live in "good homes".
She said: "The reason I'm involved... is partly to get justice for my younger self, who shouldn't have been put through what I was put through.
"But most importantly, for the people who are still locked up in these places because this should not be happening in this day and age."









