The head of the UK pressure group, the Society for Individual Freedom, has criticised plans to introduce finger scanning in Yeovil pubs and clubs.
Biometric scanners have been installed in pubs and clubs
The move is "the insidious low-level start of general population movement control", said Michael Plumbe.
Biometric scanners were installed in a number of venues in the town recently, with drinkers asked to register and provide a photograph and a finger scan.
They can then be asked to give a fingerprint as proof of identity.
Speaking from his home in Hastings, East Sussex, Mr Plumbe said: "On the face of it, the scheme has much merit especially as it is voluntary.
"However the terrible implication of this scheme is that, once it is implemented and accepted, those in authority will find it much easier to put into place far more general movement-control systems."
Recently Sgt Jackie Gold, of Avon and Somerset Police, praised the scheme. He said: "There are many benefits, which include being able to easily verify the age of a person who is registered."