Twelve months ago Janet Alder learned the brother she thought had been buried 11 years previously was still in a morgue.
Christopher Alder, 37, choked to death on blood and vomit on the floor of a Hull police station in 1988.
Her long campaign for answers took a new twist with the grim discovery that a 77-year-old Nigerian woman, Grace Kamara, had been buried in his place.
But, Miss Alder, 50, of Triangle, is still no further forward and has set her sights on a public inquiry to get to the bottom of what has happened.
She has been touring the country galvanising support from trade unions and others for the Justice for Christopher Alder Campaign.
In another development the human rights group Liberty has lodged a claim on Miss Alder’s behalf with the Central London County Court.
That opens up the possibility of civil proceedings against Hull Council, which ran the city mortuary when the wrong body was released in November 2000 and Hull and East Yorkshire Hospitals NHS Trust.
“I have had no answers from the authorities in 12 months and a civil claim will give the opportunity to look at documents,” she said.
“The longer this goes on the less confident I get and I am disgusted at the disrespect the family has been shown.
“It’s not about money it’s about accountability.”
She said those responsible for the mix-up should be named and she won’t rest until a public inquiry is held into the full cirumstances of her brother’s death.
Eleven years ago a coroner’s jury said Mr Alder was unlawfully killed. In 2002 five Humberside Police officers went on trial accused of manslaughter and misconduct and were cleared.
Last year the Government paid compensation after admitting Mr Alder’s treatment - before the burial scandal - breached the European Convention on Human Rights.