The National DRIVE Conference is taking place in Portlaoise.
Gardaí say drug intimidation is affecting communities in every county in Ireland.
Investigating officers are understood to have identified suspects in the murder of four members of the same family in Waterford.
Drug-related activity and drug debt intimidation are understood to be a central line of inquiry.
It comes less than a year after a fire bomb attack in Edenderry claimed the lives of a boy and his grand aunt in Edenderry in Offaly.
That incident is now the subject of a murder charge.
The National DRIVE conference, tackling the issue of drug intimidation, is taking place at the Midlands Park Hotel in Portlaoise today.
Detective Superintendent with the Garda National Drugs and Organised Crime Bureau, Shane McCormack says it's a complicated problem:
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