A Labour source said: "Doreen Lawrence is a hero of modern Britain. The strength and courage she has shown in her fight for justice for her son Stephen has had a profound impact on attitudes to racism and policing.
Her campaigning has changed, and will continue to change, our country for the better.
"Ed Miliband believes voices like hers should always be heard in Parliament."
More top news
A new planet which could contain life has been discovered close enough to Earth to be reached by future space missions.
Crisis talks are being held over fears that trainee Catholic priests in Ireland are using the gay dating app Grindr.
Patience Chukwu was dragged along the street and punched repeatedly in the face near Homerton Hospital in east London.