"The sister of Sean Rigg has vowed to continue her fight for justice after a police misconduct panel dismissed allegations against five officers involved in his fatal detention."
See: Sean Rigg: Sister Marcia Rigg-Samuel vows to continue fight (Sutton & Croydon Guardian, link):
“Marcia Rigg-Samuel has fought an 11-year battle since her brother, a 40-year-old with schizophrenia, died after being restrained by Metropolitan Police officers.
But on Friday (March 1) a disciplinary panel dismissed all allegations against police constables Andrew Birks, Richard Glasson, Matthew Forward, Mark Harratt and Sergeant Paul White.”
And: Officers involved in Sean Rigg arrest and detention cleared of gross misconduct (IOPC, link)