It was a shock, but hardly a surprise. The week before, another brick had been thrown through the window as the family were preparing for bed in their Bradford home. The victim of a three-year campaign of religious hatred, Mr Hussein’s car has also been rammed and torched, and the steps to his home have been strewn with rubbish.

He and his family have been regularly jostled, abused, attacked, shouted at to move out of the area, and given death threats in the street. His wife has been held hostage inside their home for two hours by a mob. His car, walls and windows have been daubed in graffiti: “Christian bastard”.

The problem isn’t so much what Mr Hussein, whose parents came from Pakistan, believes, but what he doesn’t believe. Born into Islam, he converted eight years ago to Christianity, and his wife, also from Pakistan, followed suit.

While those who convert to Islam, such as Cat Stevens, Jemima Khan, and the sons of the Frank Dobson, the former Health Secretary, and Lord Birt, the former BBC Director-General, can publicly celebrate their new religion, those whose faith goes in the other direction face persecution. Mr Hussein, a 39-year-old hospital nurse in Bradford, is one of a growing number of former Muslims in Britain who face not just being shunned by family and community, but attacked, kidnapped, and in some cases killed. There is even a secret underground network to support and protect those who leave Islam. One estimate suggests that as many as 15 per cent of Muslims in Western societies have lost their faith, which would mean that in Britain there are about 200,000 apostates.

For police, religious authorities and politicians, it is an issue so sensitive that they are accused by victims of refusing to respond to appeals for help. It is a problem that, with the crisis of identity in Islam since September 11, seems to be getting worse as Muslims feel more threatened.

Muslims who lose their faith face execution or imprisonment, in line with traditional Muslim teaching, in many Islamic countries, including Saudi Arabia, Pakistan, Egypt and Yemen. In the Netherlands, the former Muslim MP Ayan Hirsi Ali had to go into hiding after renouncing her faith on television.

The Prince of Wales recently held a meeting with religious leaders to consider ways to stop former Muslims being persecuted in other countries, but Britain itself is also affected.

Mr Hussein told The Times: “It’s been absolutely appalling. This is England — where I was born and raised. You would never imagine Christians would suffer in such a way.”

The police have not charged anyone, but told him to leave the area. “We feel completely isolated, utterly helpless. I have been utterly failed by the authorities. If it was white racists attacking an Asian guy, there would be an absolute outcry,” he said. “They are trying to ethnically cleanse me out of my home. I feel I have to make a stand as an Asian Christian.”

Yasmin, who was raised in the North of England, has been forced out of her town once, and is now trying to resist being chased out again. Brought up in a Muslim family, she converted after having a vision of Jesus when she gave birth to her youngest son, and was baptised in her thirties.. “My family completely disowned me. They thought I had committed the biggest sin — I was born a Muslim, and so I must die a Muslim. When my husband found out, he totally disowned my sons. One friend tried to strangle me when I told him I was converting,” she said.

“We had bricks though our windows, I was spat at in the street because they thought I was dishonouring Islam. We had to call the police so many times. I had to go to court to get an injunction against my husband because he was inciting others to attack me.”

She fled to another part of Britain, but the attacks soon started again as locals found out about her. “I wasn’t going to leave again,” she said, adding that it was the double standards of her attackers that made her most angry. “They are such hypocrites — they want us to be tolerant of everything they want, but they are intolerant of everything about us.”

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