James Welch, legal director for human rights group Liberty, said:
Statistics suggest that Mr Lawrence's experience of repeated searches is not unusual.
The police maintain that stop and search is an important tool in their armoury. But they seem incapable of exercising the power in a non-discriminatory way.
That will leave many questioning whether they should have the power of stop and search at all.
More top news
The head of football's anti-discrimination body Kick It Out has responded to attacks by QPR defender Rio Ferdinand in his autobiography
Prime Minister David Cameron and his wife Samantha surprised diners in Solihull by dropping into fast food chain Five Guys for burgers.
Imposing age ratings on music videos is a step in the right direction but it's currently impossible to police endless inappropriate content.