Families and friends of people who have died in police custody will march thorough central London on Saturday 30 October.
The protest, initiated by the United Families and Friends Campaign, will assemble in Trafalgar Square at 12 noon.
It will march to Downing Street to demand justice and the truth for those who have died.
Marchers are asked to wear black and bring their campaign banners.
Go to http://uffc-campaigncentral.net for more information.