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
Cloud thickens throughout the evening ahead of some light overnight rain. Milder temperatures than last night.
Ed Miliband is expected to reveal more details of a levy on homes worth more than £2m in his speech to the Labour conference today.
Homes around London are being invaded by spiders with rising temperatures helping the creepy crawlies grow bigger than usual.