Tony Blair has come under fire over plans to create a regional police force for the West Midlands.
The Prime Minister pledged to listen to the views of local people when he was quizzed by a Commons committee.
But he appeared stunned by angry criticisms from a Midland MP, who accused him of ignoring concerns about mergers of emergency services.
Fire services, ambulance services and health authorities are all being reformed to create giant regional bodies.
The Home Office is also considering merging the region's four police forces.
Instead of West Midlands Police, West Mercia Police, Staffordshire Police and Warwickshire Police, there could just be one large superforce.
MP Peter Luff (Con Mid Worcestershire) said: "My perception is you're quite good at consulting on the details, the small things, but the big things you just push down people's throats.
"What about the regionalisation of fire control rooms, for example? What about consultation over the regionalisation of ambulance trust?
"The merger of primary care trusts, the mergers of strategic health authorities?
"In my part of the world they were smuggled through with a bureaucratic secrecy of which Sir Humphrey would have been proud."
Speaking to the House of Commons Liaison Committee, which brings together all 30 select committee chairmen, Mr Blair argued that there had been consultation.
But Mr Luff complained that the Home Office was rushing through "very dramatic and unpopular" plans to create a giant "strategic regional" police force.
Mr Blair said: "People will listen very carefully to what local people have to say about something like that. Police reorganisation has been going on for years and years and years.
"There is a debate how best to configure your police services, particularly when you've got certain things, for example terrorism and organised crime, which people think are done better on a bigger scale basis. But I can assure you we will listen very carefully."
A second option the Home Office has said it is willing to consider is merging West Midlands Police and Warwickshire Police, and Staffordshire Police and West Mercia Police, to create two forces.