AFP/Islamabad

Pakistan's Supreme Court has granted bail to a woman who is on trial for blasphemy after she spent three years in jail, her lawyer told AFP on Friday, a rare decision in a country where such charges are hugely sensitive.

Waliaha Arfat was accused of desecrating a copy of the Holy Qur’an and jailed in 2012 in the eastern city of Lahore, where her trial in a lower court is still ongoing.

"Her continuous confinement poses a serious threat to her life," her lawyer, renowned human rights activist Asma Jehangir, told AFP.

However her fiance Muhammad Amanullah said her safety was also a major concern once she leaves jail.

Blasphemy is a volatile issue in Pakistan, an Islamic republic of some 200mn.

"Some extremists had earlier tried to attack her when she was being taken to the court. Later, the court had to move her trial inside the jail," Amanullah told AFP.

Arfat's trial lawyer Saiful Malook said she will be released soon.

She is suffering from mood disorders and needs psychotherapy, Jehangir said, adding that Pakistan's penal code says no woman can be kept behind bars in the country for more than six months without a conviction.

In her petition, Jehangir pleaded her client's innocence and said that as a Muslim she could not even conceive of committing such a crime.

A trial judge first refused Arfat bail in 2012 because of the "serious nature" of the charge.

She appealed twice, with both pleas rejected, and the provincial High Court also dismissed a petition on August 28 this year.  

This month the Supreme Court upheld the death sentence for the killer of a politician who sought blasphemy law reform, in a historic verdict hailed by moderates as a blow against religious extremism.

The ruling prompted prison officials to put Asia Bibi, a Christian woman on death row for blasphemy, in isolation over fears of attacks by vigilantes.