Charges secured in just three out of 18 gang-related murders in past 20 months
Gardai have had a success rate of just over 16pc in securing charges in the 18 gang-related murders since the start of last year.
There have been 18 gang -related gun murders since January 2014, but there have only been charges in three of these cases.
Thirteen of the gruesome killings have happened in Dublin but there is only one case in which a suspect is before the courts in the capital.
"Of course, these crimes are extremely hard to solve but it has never been harder because of all the cutbacks in the gardai and layers of bureaucracy that are imposed on investigation teams now," a senior source told the Herald.
"Because of the constraints that investigation teams are working under nowadays, everyone is terrified to make a mistake and this is not the way that these complex and difficult crimes can be solved.
"Too many boxes need to be ticked all the time and it slows everything down and actually impinges on solving these crimes," the source added.
In what was a relatively calm summer for gangland-related murders across the country, the latest unsolved gun murder in the capital happened on the night of May 27, when Alan O' Neill was shot dead at the doorway of a house in the Kiltalown Road area of Tallaght.
Two suspects have already been arrested and questioned about the murder but were released without charge, while gardai have been actively looking for another criminal who was involved in the murder.
Officers arrested the two men, aged 28 and 18, shortly after the shooting. While officers are following a definite line of inquiry in relation to Mr O' Neill's murder, there have been no arrests in the case of Paul Kavanagh (27), who was shot dead in Drumcondra, north Dublin on March 26.
He was shot several times as he sat in his car after it was rammed on Church Avenue, in a shooting which has been linked to an internal cash feud in the Christy Kinahan drugs cartel.
Gardai in Sundrive Road station have made much more progress in the investigation into the fatal shooting of Eddie Nugent (64), who was shot dead at his home in Walkinstown on the night of February 15.
Three suspects - including a juvenile teenage male - have been arrested and questioned about Mr Nugent's murder and all have major links to a dangerous southside gang who are involved in a bitter feud.