Garda Commissioner Drew Harris has said the full resources of An Garda Síochána are available to the team investigating the murder of 17-year-old Keane Mulready-Woods.
The teenager was murdered and his remains dismembered before being left at a number of locations in Dublin.
A house in the Rathmullen Park area in Drogheda remains sealed off as forensic specialists continue a detailed examination of the property.
Gardaí believe Keane was murdered as part of the ongoing feud between two criminal gangs in Drogheda.
Commissioner Harris has visited Drogheda and Coolock Garda Stations and assured the investigation teams of the full support of the organisation.
The officer leading the investigation has said the two feuding criminal gangs are intent on inflicting maximum damage on each other, and that gardaí are dealing with an unacceptable level of violence.
Chief Superintendent Christy Mangan described the murder as horrific, and insisted gardaí are determined to bring those responsible for Keane's murder to justice.
Garda Commissioner Drew Harris visited Drogheda and Coolock Garda Stations
He said Keane's murder, the dismemberment of his body and the dissemination of his remains represents a level of brutality and savagery completely unacceptable in any democratic society.
Similar tests are also expected to confirm today or tomorrow that human remains found in a burning car in Ballybough yesterday morning are also those of Keane's.
Supt Mangan said the gangs involved wanted to control parts of society through cocaine, and finance lifestyles through drugs and intimidation.
He insisted that gardaí were not going to allow that to happen.
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