Northern Ireland's new chief constable has pledged to work with all the people of the region to defeat dissident republican terrorists opposed to the peace process.
On his first day in the job, Matt Baggott said the threat posed by the violent extremists was real and should not be underplayed.
Security is high across Northern Ireland amid fears the dissidents would try to mark the arrival of the former head of the Leicestershire force with violence.
One man was arrested after a number of early morning raids in Dungannon, Co Tyrone.
Mr Baggott comes to the job with a reputation as a strong advocate of neighbourhood policing and in his first public appearance as chief constable he stressed the key part communities would play in subduing the dissidents.
"The threat is real, it would be wrong of me not to say that," he said after a meeting with the chairman of Northern Ireland Policing Board Barry Gilligan.
"I don't diminish it, I don't underplay it, it is real. And there are some people doing some dedicated work at the moment to deal with it.
"The way to deal with it is for communities themselves in the vast, vast majority to say no to the people who want to return to the past.
"The greatest resource we have here is the communities themselves."
