PC Nicola Hughes will be laid to rest at a special service at Manchester Cathedral today.
The 23 year old was shot dead in Hattersley two weeks ago along with her colleague, 32 year old Fiona Bone.
The Greater Manchester Police Federation say members of the public are welcome to pay their respects along the route and are calling for police officers and the public to stand 'shoulder-to-shoulder.'
The Federation wants officers from across the country and people from Greater Manchester to line Deansgate in the city as their cortèges are taken to Manchester Cathedral.
Entry to the cathedral will only be available to officers and staff who have been invited.
Officers will wear bands with their fallen colleagues badge numbers on, they're also being sold to the public with money going to their families.
A memorial service was held for the two officers earlier this week. Our correspondent Rachel Townsend has more:
Today the funeral of PC Hughes will be transmitted onto a screen in Cathedral Gardens at the rear of the Cathedral. Officers, police staff and members of the public are asked to arrive at the route by 11:45am. Tomorrow the funeral of PC Bone will be transmitted by audio only in to the same area in Cathedral Gardens. Officers, police staff and members of the public are asked to arrive at the route by 08:45am.
See the route below.
29 year old Dale Cregan has been charged with their murders.