An advocacy group for the families of victims of homicide has called for the end of concurrent sentencing for homicide offences.

The AdVIC group is to lobby for legislation that will ensure that consecutive sentencing for offenders will operate on a statutory basis and be written as a presumption into law.

As a result, judges' discretion on concurrent sentencing would be removed with regard to all unlawful killings and violent offences.

The AdVIC group is holding its annual general meeting today.

It urged Minister for Justice Alan Shatter to look at inadequacies in the system.

Speaking after the AGM, AdVIC representative John Whelan, whose nieces Zara and Nadia Whelan were murdered in 2008, said: "There is terrible inequality in the Irish justice system, where the rights of victims of homicide and their families constantly fall by the wayside.''

In 2011, there were 42 murder and manslaughter offences recorded; six cases of attempted murder; and 396 cases of threats to murder.