He said knife crime was low compared to other areas of the country and that investment had been directed at schemes to reduce it further.
Dorset Police is partly funded by a national grant, which is divided between police forces across the country and is decided by the national funding formula.
But Sidwick said, as a holiday destination, Dorset should receive greater amounts of funding.
“We don’t get an extra penny to police any tourists,” he said.
He said he had appealed to central government for more funding but had been “fobbed off”.
A Home Office spokesperson said: “The Home Secretary has announced reforms to policing that will allow forces to focus on protecting their community and make the public safer, including putting 13,000 more neighbourhood officers into roles to tackle local crime.
“Police force funding next year is at a historic high of £18.4bn, with Dorset Police seeing an increase of 4.5% compared to 2025/26.”