Officers are being drafted in from across the UK to police the Conservative Party conference being held in Blackpool.
The policing operation has been partially funded by the Home Office
Final preparations were being made on Friday by Lancashire Police for the £2.5m Operation Palisade.
The three-day conference starts on Monday and involves mainly the Winter Gardens and Imperial Hotel.
Asst Ch Con Adrian McAllister said stringent security checks would be in place at the venues.
'Safe and secure'
The cost of funding the policing has been partly met by a grant from the Home Office.
Hundreds of delegates are expected to start arriving in the resort.
A new barrier and gate system will be in place around the two venues and queues are expected because of the levels of checks, police said.
Mr McAllister said: "Following the bombings in London earlier this year, all our minds are focused on ensuring that people attending the conference itself and those in and around the town of Blackpool are kept safe and secure during this period."