PSNI chief constable Jon Boutcher considered drafting in homicide detectives from Britain after nine people were murdered across the north in the past two months.
Mr Boutcher revealed details of the unprecedented move to bolster the number of murder squad detectives at a meeting of the Policing Board on Thursday.
The PSNI’s most senior officer told political and independent board members that nine murders have been committed since the end of June, a period covering just over two months.
Among the most recent murders was of convicted sex attacker Sean Small in Newcastle last month.
Under mutual aid agreements, the PSNI can call in extra support from police forces in England, Scotland, and Wales during major events or periods of pressure.
Police officers from Scotland were drafted in to help the PSNI during rioting in Ballymena, Co Antrim, earlier this year (Liam McBurney/PA)
In June extra officers were drafted in from Scotland to help with several nights of race riots in Ballymena, Co Antrim, and other districts.
In recent months PSNI chiefs have warned of a funding crisis and the impact it is having on policing.
Earlier this year the force said it needs £200m over five years to recruit hundreds of new officers as it seeks to raise its numbers to 7,000.
During Thursday’s board meeting Mr Boutcher described the nine murders in recent weeks as a “shocking statistic”.
“Too many families are now grieving and attempting to come to terms with the appalling loss of a loved one in shocking circumstances,” he said.
“At times like this when we stop to take stock of policing, we must not forget that.”
The chief constable added that due to resourcing crisis he has considered drafting in police officers from Britain to help with murder probes.
“Our teams of detectives whose investigative case loads are already far too high compared with other forces across the United Kingdom are working flat out to support those families to get answers and justice,” he said
“They are doing incredible work.
“But due to the high number of cases being managed, coupled with our low numbers of detectives, I considered seeking national mutual assistance for our homicide teams.
“I think that would be unprecedented.”
Mr Boutcher added that “eventually, people are going to listen to the resourcing challenges of this organisation”.
Police Federation chair Liam Kelly said the position outlined by the chief constable is “frightening”.
“We are all too aware of unsafe staffing levels within the PSNI and it is no surprise to hear how the chief constable considered seeking mutual aid to assist the major crime unit.
“This is damnable, frightening and wholly unacceptable.
“We need a substantial increase in detective numbers to adequately cope and thousands more officers to carry out ordinary, everyday policing duties.”
Mr Kelly urged politicians to do more.
“The PSNI is starved of resources – left at the back of the queue,” he said.
“At some point, there will have to be some honest re-assessment of the services that will have to be pared back.
“It is an indictment of our executive that ministers are turning a blind eye to a service in dire straits.
“This is a crisis that will only get worse if ministers continue to sit on their hands.”