Why it matters: Voters will choose their first regional mayor in less than a year, with Passmore beating fellow Conservative candidates former Suffolk County Council leader Colin Noble and Norfolk County Council leader Kay Mason Billing.
The big picture: Passmore was the first public figure to announce his interest in the role back in March, having served as PCC since 2012 and winning re-election for a fourth consecutive time last May.
However, he has warned that devolution plans lack crucial detail so close to the election.
"There's an awful lot there that is not decided, and I do think the Government needs to be much clearer on exactly how this will work," Mr Passmore said.
"We can't afford for policing not to be supported, we don't want to jeopardise any of this work because of governance changing."
What they're saying: Despite his concerns, Passmore believes devolution offers a "golden opportunity" for Norfolk and Suffolk to work together, particularly around addressing funding inequalities.
He has long criticised what he calls a "complete injustice and unfairness in the system" that favours metropolitan areas over rural counties.
Following his successful candidacy bid, he said, "I am absolutely thrilled to have been selected as the Conservative candidate for the Norfolk and Suffolk mayoralty elections taking place next May," he said.
"There is enormous untapped economic potential, and the whole area is bursting with opportunity. If elected as mayor next year, I will do everything possible to unlock that potential for the benefit of everyone.
This is a once-in-a-lifetime golden opportunity for our two wonderful and historic counties to increase prosperity locally and also across the whole of the United Kingdom."
What's next: Though a full list of priorities would be developed in consultation, Passmore said he would focus on long-term planning for water availability for farmers, encourage development to ease younger people into the housing ladder and improve connectivity between rural areas.
The bottom line: Passmore believes he has the right attitude, skills and approach to ensure a smooth transition while delivering on expectations for the new combined authority. He has been approached for comment.
