Instead extra sniffer dogs and X-ray machines will be used to search passengers.

During the trials, passengers stopped in London had the exterior of their bags checked by dogs. But in Brighton, dogs patrolled the station concourse and were walked past passengers by their handlers.

The report concluded: “The use of sniffer dogs was generally problem­atic for Muslim respondents on rel­igious grounds if there was the potential for the dog to make direct contact with them.”

When Muslims have washed for certain forms of worship, they would have to repeat the ritual if they came into contact with a dog.

One young Asian man told re­searchers: “We are not supposed to have dogs. It is against our religion.”

Another Asian man said: “I don’t mind dogs in the park or walking near me, but sniffer dogs? I don’t think that’s right, on the station, the way they use them.”

Massoud Shadjareh, chairman of the Islamic Human Rights Com­mission, said even dogs touching baggage would be an issue for a Muslim preparing to pray. But he stressed that it should be easy to allow dogs to check passengers
without physical contact.

“There is a way of dealing with this and we just need to be sensitive,” he said.

In another trial on the Heathrow Express platform at Paddington station in London, there were inst­ances when the body scan – which creates an image on a monitor – was considered unacceptable by female Muslims, the report said.

One Muslim woman complained: “Sometimes I wear clothing which is not so tight. It will be shown on (the monitor) and somebody is looking at it. It defeats the whole purpose of me covering up.”

The report, on five rail security trials in 2006, also showed that some Asians and black people felt they could be selected for tests because of their ethnicity.

A Transport Department spokes­man said the use of sniffer dogs was a matter for the police. But he stressed that the report was only a conclusion of passengers’ views.

A British Transport Police spokes­man said sniffer dogs would continue to be used with any passenger but officers would be considerate where appropriate.

He added: “We are obviously aware of, and sensitive to, cultural sensitivities. BTP officers do have the power to stop and search anyone under Section 44 of the Terrorism Act.

“This also covers the use of dog handlers and dogs, which are used to ‘indicate’ any substance they have been trained to detect.

“As a force we obviously look at any or all feedback about how people from all faiths and backgrounds view the use of dogs, and how we can incorporate that into how the dogs and their handlers interact with people.”

Announcing new security measures to screen Tube and mainline rail passengers, the Government said yesterday that surveys had shown the public would be unlikely to accept major delays to journeys.

People also wanted to ensure their personal privacy was protected.

British Transport Police said it was enhancing its existing stop and search capabilities with the use of X-ray equipment for screening bags, along with the deployment of more sniffer dogs. It said a proportion of passengers and their bags would be searched with minimal delay and inconvenience to the public.

Transport Minister Tom Harris said: “We will continue to work with British Transport Police and rail operators to assess the effectiveness and impact of these new measures.

“We will use this evidence, and that from elsewhere in the UK and abroad, to develop further ways of keeping the travelling public secure using proportionate measures.”