EIGHT sex workers were murdered in Glasgow between 1991 and 2005, but the efforts of the police in trying to solve the crimes has only led to one successful prosecution.

Brian Donnelly was jailed for life for the murder of prostitute of Margo Lafferty in 1998 and then had his conviction quashed.

He was found guilty for a second time after a re-trial.

However, no-one else has ever been brought to justice for the other prostitutes killings.

In the case of Diane McInally, who was found battered to death in the city's Pollok Park in 1991, two men were charged with her murder but later released because of a lack of evidence.

A male stood trial accused of murdering 26 year old mother-of-two Karen McGregor, whose body was found in the Scottish Exhibition Centre car park, but a not proven verdict was delivered.

In 1995, Leona McGovern was found throttled with a belt round her neck and with multiple stab wounds. A man was charged but found not guilty of murder at the trial.

In 2004, a jury returned a not proven verdict on a man accused of murdering Jacqueline Gallagher eight years before.

The male had been accused of dumping her body on a roadside on Dumbarton road.

He was also accused of trying to defeat the ends of justice, but this charge was also was found to be not proven.

In the case of Tracey Wylde, a 21 year old who was found dead at her flat in the city's Barmulloch area in 1997, a male was arrested in India recently. Proceedings are live.

The body of Marjorie Roberts, 34, was found in the river Clyde in 1995, but Police Scotland has stated that no criminality could be established.

Finally, after Emma Caldwell's body was found in woods near Biggar in 2005, four suspects were charged in connection with her murder.

However, the case collapsed and the individuals were freed.

Police Scotland is re-investigating the case.