Speeches from matua Tom Mulligan, acting district commander Inspector Kevin Taylor and Reverend Heather Flavell were heard.
The Roll of Honour from 1886-2017 was read out by Inspector Damin Ormsby.
Senior Constable Snee, aged 53, was killed on May 7, 2009, while carrying out a routine drugs raid at Jan Molenaar's house in Napier.
The 33-year police veteran was with two other police officers, Senior Constable Bruce Miller and Senior Constable Grant Driver, who were both shot and seriously wounded along with a member of the public who intervened to protect the officers.
The three officers had managed to run for the street while Molenaar began to open fire before Senior Constable Snee was shot three times and killed instantly.
During a 51-hour stand-off, the offender used an arsenal of weapons to shoot at police and members of the public. He died after turning one of his guns on himself.
Constable Glenn McKibbin, aged 25, was killed after being shot while doing a routine traffic stop in Flaxmere on April 21, 1996.
The son of a retired officer and a 25-year-old father with a partner and young son, Constable McKibbin had just stopped a car in Yarmouth Rd late on the Sunday morning when the driver of a mustard-coloured Ford Falcon station wagon slowed and fired at the officer from a .22 Ruger rifle.
The startled driver of the car, an innocent party, ran for cover as the station wagon drove off, before doing a U-turn. It again stopped alongside the scene as its driver fired two more shots at the officer's patrol car, just missing the officer as he lay dying in the street.
Its driver sped off and abandoned the station wagon 18km away at the remote southern end of Anaroa Rd, west of Te Hauke and off Raukawa Rd south of Bridge Pa.
Identified as Terence Thompson, 43, he was the subject of a nine-week manhunt, before being challenged by armed police in an orchard near Havelock North, and shot dead after ignoring a demand to surrender and pointing a gun at an officer.
Thirty-two police officers and officers of the former Ministry of Transport Traffic Safety Service, which merged with police in 1992, have died as a result of criminal acts since New Zealand Police was established in 1886.
A further 48 constabulary and non-constabulary staff members have died as a direct result of performing their duties.