The chair of the independent study of the State's response to familicide and domestic homicide has renewed her appeal for submissions particularly from relatives of the fatalities of such attacks.

Norah Gibbons said it is vitally important that the people directly affected by such tragedies get in touch with the study team as soon as possible in order to share their experiences and insights with it.

A spokesperson said that next Wednesday's deadline for submissions would not be strictly applied and that interested parties may contact the study during August and September.

The spokesperson also emphasised that records of submissions to the study would be destroyed within six months of its completion and will not be obtainable by third parties under Freedom of Information legislation.

Last February, Minister for Justice Charlie Flanagan met the family of Clodagh Hawe who, along with her three young sons Liam, Niall and Ryan, was murdered by her husband Alan in their home in Cavan in 2016.

Alan Hawe then took his own life.

Her family called on the minister to reform the law and take other measures to prevent the unlawful deaths of family members and address other aspects of such tragedies.