Marcia Rigg l, sister of Sean Rigg, embraces Carole Duggan r, aunt of Mark Duggan, in Trafalgar Square before the annual procession to Downing Street by the United Families & Friends Campaign UFFC in remembrance of family members and friends who died in police custody, in prison, in immigration detention or in secure psychiatric hospitals on 29 October 2022 in London, United Kingdom. Sean Rigg, 40, died on 21 August 2008 while in police custody at Brixton police station. Mark Duggan, 29, was shot dead by Metropolitan Police officers in Tottenham on 4 August 2011. There have been 1,838 deaths in police custody or otherwise following contact with the police in England and Wales since 1990.