Doreen Lawrence said more would be done this year to ensure no other family has to go through what she endured, including an outreach programme to new police chiefs.
Elsewhere, a concert planned for April, a criminal justice lecture, an annual memorial lecture and a gala ball will help raise awareness and funds for the Stephen Lawrence Charitable Trust, which Mrs Lawrence founded
Mrs Lawrence said the trust would campaign to new police and crime commissioners for fairer community policing.
A memorial service will be held at St Martin in the Fields on April 22, the date Stephen died in 1993, as part of the so-called SL20 Campaign.
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Police are looking for a man who sexually assaulted a 12-year-old girl at a London train station yesterday while she was with her family.
A gang of robbers who dressed in burkas to stage raids on high-end stores in London have been convicted today.
The retrospective is so in-demand the museum will open its doors all through the night for the first time since it opened in 1857.