It was a welcome change from the usual dreary story: A Christian or a Hindu Pakistani accused of blasphemy on flimsy grounds, tried, and sentenced to prison - or found innocent, set free and then murdered by some Muslim fanatic. This time was different.
The victim this time was a 14-year-old Christian girl, Rimsa Masih, who is believed to suffer from Down's syndrome. She was stopped by a young Muslim man who found the half-burned remnants of a book that allegedly included verses from the Quran in her carrier bag. He told the local imam, who called the police, and she was arrested.
This kind of story usually ends badly in Pakistan. Two years ago, for example, a Christian woman, Asia Bibi, was arrested for insulting the Prophet Mohammad while arguing with fellow farm-workers. She was sentenced to death by hanging, but it was such a manifest injustice that the governor of Punjab province, Salman Taseer, publicly called for the repeal of the blasphemy law. He was assassinated by his own bodyguard in January 2011.
The bodyguard was tried for murder and convicted, but he was treated as a hero by many Pakistanis, and the judge who sent him to prison had to flee the country. Two months later the only Christian member of Pakistan's cabinet, Shahbaz Bhatti, was also shot dead when he spoke out against the blasphemy laws. Since then, almost nobody has dared to criticise them.
So the outlook seemed grim for Rimsa Masih when she was arrested last month, but then the imam who had called the police, Hafiz Mohammad Khalid Chisti, was arrested for doctoring the evidence. His own deputy had seen him adding pages from the Quran to the young Christian's bag.