The Scottish Government says the move will make railway policing more accountable but critics include trade unions and BTP officers.
Scotrail Seals 'In Principle' Agreement With RMT
ScotRail said it has reached an in-principle agreement with the RMT union to bring to an end a dispute over driver-only trains.
The company said the agreement included a guarantee that a conductor would be retained as the second member of staff on board new trains being rolled out next year.
The dispute led to several days of strikes on the rail network over the summer but further planned industrial action was suspended earlier this month to allow for further talks.
ScotRail said the RMT would now present the proposal to its members in a company-wide vote.
The company said discussions had also taken place with Aslef, the train drivers' union, and a similar in-principle agreement reached.
ScotRail Alliance managing director Phil Verster said: "I am pleased that we have reached an in-principle agreement with the RMT and Aslef unions that, if formally agreed, will bring this dispute to an end.
"This will end the uncertainty for our people and our customers, and will allow us to concentrate on delivering the best possible service for Scotland, every single day.
"What we have put forward in our proposal will make our service more efficient and more effective while maintaining and enhancing the service we provide to our customers.
"It means that the new faster, longer, greener trains that will arrive in autumn next year really will be a revolution in how we deliver our service.''
An RMT spokesman said: "After long hard hours at the negotiating table, and a sustained period of determined and solid industrial action involving our members, RMT's team will be reporting back to the unions executive tomorrow where the details will be considered in full.
"A further statement will be issued by the union after that executive meeting.''
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