Commissioner of Police Mike Bush and former police Eastern Districts Commander Sam Hoyle are expected to be in Napier on Tuesday for a Napier Siege commemoration for police, emergency services, families and others close to the tragedy in Napier 10 years ago.

It will mark the anniversary of the death of Senior Constable Len Snee and the serious wounding of fellow senior constables Grant Diver and Bruce Miller and civilian Len Holmwood who were shot by cannabis grower Jan Molenaar after the three officers arrived at Molenaar's Chaucer Rd, Napier, home to conduct a search on the morning of May