Two men wrongly convicted of murder have joined together with the victim's family to call for a public inquiry.
Mr Poole and Mr Mills [right] were released last year
Gary Mills, 44, and Anthony Poole, 41, from Gloucester, were jailed for life in 1990 after the fatal stabbing of Hensley Wiltshire during a fight in the town in 1989.
After 14 years in prison, the Court of Appeal ruled last year that the convictions were unsafe.
On the 15th anniversary of Mr Wiltshire's death the two men, with Mr Wiltshire's brother and friends, are calling for an independent
inquiry into how he died in police custody.
During a protest outside Gloucester police station on Tuesday, Clive Fairley, 43 -
Mr Wiltshire's half-brother - said: "I came here to mark the anniversary
of my brother's death.
"We want to know why he died and we want to be taken seriously. We are determined not to sit down and let this lie."
Mr Mills said: "Although we have been released, it hasn't sorted out any of the
problems surrounding Hensley's death.
"We want a public inquiry because his family are entitled to answers."
In June last year the Court of Appeal concluded that the murder convictions were unsafe for two
One was non-disclosure of material and the other related to a document wrongly put before the jury which was "unfairly prejudicial to both men".
Gloucestershire police made no comment on the protest.
A spokeswoman said: "We are currently carrying out a review of the
Court of Appeal's judgment."