The wife of the Lockerbie bomber has joined a candle-lit vigil to highlight alleged miscarriages of justice.
Aisha Al Megrahi marched side-by-side with relatives and supporters in the four-hour demonstration, which made its way to the Scottish Parliament.
It was a high-profile step to take by the Megrahi family and they were flanked by members of the Libyan consulate.
Aisha Al Megrahi did not speak to the press, but her daughter said: "We are here for my dad."
Their decision to take part in todays march was no doubt prompted by the recent ruling rejecting Abdelbaset Al megrahi's bail application.
Mr Megrahi is terminally ill with cancer and Edinburgh judges refused to set him free as he awaits an appeal hearing next year.
The 56-year-old has always denied being responsible for the 1988 Lockerbie bombing, which killed 259 people on board and a further 11 on the ground.
In November he failed to persuade judges that he should be freed on bail pending his second appeal, which will take place in 2009.
His lawyer read out a statement on behalf of the family.
Tony Kelly said: "He is an innocent and very ill man who is suffering every day from both psychological and physical stress and I ask all to raise their voices in his support."
Mrs Megrahi and her daughter later lit candles, joining dozens of Scottish families in their united plight for justice.
The march began at Edinburgh Castle at 3pm and then moved down the Royal Mile to Holyrood, finishing at around 7pm.
The demonstration, called the Silent Walk For Justice, highlighted a number of high-profile cases.
Protesters carried candles and photographs of loved ones who they think were let down by the legal system.
Organiser Maria Jansson helped to arrange the vigil with friend Guje Börjesson, who has been campaigning for a Fatal Accident Inquiry since the body of her 30-year-old daughter Annie Börjesson was found washed up on the shore at Prestwick in 2005.
Maria Jansson insisted the march was not about individual cases and more about people who feel let down by the legal system.
She said: "We are highlighting that the families have one aim to get truth and seek justice.
"It is their belief and we are not there to judge individual cases but we are trying to make injustice visible, to give it a face.
"I do not see it as controversial; it is not about specific people."
Among those taking part was Corrine Mitchell, mother of convicted killer Luke Mitchell. Mitchell was jailed in 2005 for the murder of his girlfriend, 14-year-old schoolgirl Jodie Jones, and is serving a life sentence at least 20 years but has maintained his innocence.
Mrs Mitchell maintained there was fresh evidence to launch an appeal to free her son and a new legal team has been appointed to the case.
She said: "If that evidence had been lead to the jury my son wouldn't be in prison.
"Luke is as well as can be expected in prison and he has taken up a philosophy course."
The wife of Scottish cyclist Jason McIntyre who died after being hit by a van while out training near his home in Fort William in January was also present.
The family of Kevin McLeod, who drowned in Wick Harbour after a night out in 1997, were also among the marchers. Hugh and June McLeod insist their son was the victim of foul play and claim there have been shortcomings in the investigation of his death.
Organisers had hoped to meet with Justice Secretary Kenny MacAskill, but a spokesperson for Mr MacAskill said: "He has nothing to do with this and was never asked to be involved.
"He is very busy this afternoon and has been in parliament all afternoon."
