The Tetra system replaces 1960s technology

Cornwall County Council is asking the government not to make the Tetra mast system operational until further research has been carried out.

It follows protests by local people who are worried that microwaves from the masts could cause health problems.

Police say it is vital the current system from the 1960s is replaced to allow faster responses.

Mast refused

The Tetra system is expected to be operational across most of the UK by spring.

Objections by Zennor Parish Council in Cornwall to a Tetra mast, have led to three failed attempts by communications firm 02 to secure planning permission for a structure near St Ives.

A political party, Removal of Tetra Masts in Cornwall, was created after a mast was put up by 02 near Mawnan Smith without planning permission. 02 says it will apply for permission retrospectively.

Objector Paul Shaw, from Mawnan Smith, said: "We have gone through the diplomatic process of calling public meetings and no-one has stood up and said they are for a Tetra mast."

Mike Leach, project manager from Devon and Cornwall Police, said: "This system is being rolled out last in Devon and Cornwall.

"Other places have had it for several years and as far as I am aware there have been no adverse health affects there.