Rose White (pictured outside court) wrote that she 'was saddened to see [the school] enforce full Muslim dress and pupils to accept the role of Satan'

An eccentric great-grandmother who sent a letter to the headmistress of a top Islamic girls school claiming 'all Muslims worship Satan' has landed herself with a criminal record for 'causing harm.'

Devout Christian Rose White, 68, typed the three page note saying: 'I was saddened to see you enforce full Muslim dress and force pupils to accept the role of Satan' after seeing photos of pupils dressed in burkhas on the school's website.

Accompanying the letter was a 23-page cartoon-strip booklet titled, 'Is Allah Like You?' showing a Muslim family with a cruel father who then becomes kind after turning to Christianity.

The letter said schools would 'have a nice future under Jesus and not Satan or Mohammed or whatever they call him'.

Police were called in after Mona Mohammed, headteacher at the 232 pupil Manchester Islamic High School for Girls picked up the letter when pupils and staff returned after a half term break.

Ms Mohammed who has been head at the £5,000 a year school since 1991 was said to be 'deeply alarmed' by the contents of the letter and felt it was a personal attack on her and her school.

White, a retired mill worker from Greetland in Halifax, later claimed she became a Christian in 2014 following repeated callings from God and saw it as her 'duty' to tell Muslims to convert to her religion.

At Manchester magistrates court she denied wrongdoing but was convicted of sending an indecent or grossly offensive letter and was ordered to carry out 100 hours of unpaid work.

Passing sentence Judge Duncan Birrell told her: 'You are not allowed to conduct yourself in a way that causes other people harm. The court has already determined you have crossed the line between freedom to express your opinions and causing harm to others.'

The court heard Ms Mohammed was shocked when she opened the letter on May 13 to see it read: 'Muslims worship Satan in the guise of Allah.'

Prosecutor Miss Subhanur Chowdhury said: 'She was frightened about what would happen next. She looked through the post on her desk and among it was a letter containing three pages typed and a printed booklet, "Is Allah like you?"

Police were called in after Mona Mohammed (pictured), head teacher at the 232 pupil Manchester Islamic High School for Girls picked up the letter when pupils and staff returned after a half term break

White sent the lengthy note after seeing photographs of pupils dressed in traditional Muslim dress on the school's website

'She read the letter and was shocked to see the content was Islamophobic. It stated all Muslims were doomed to die and that Muslims worship Satan in the guise of Allah.

'Ms White explained she had sent around 50 letters to various schools and organisations. She believes it will show they "have a nice future under Jesus and not Satan or Mohammed or whatever they call him".

'The school was not specifically targeted, she had just seen it on a list on the internet and was trying to convert them to Christianity. She is not remorseful about sending the letters and feels it is her duty. She stated she would be sending further letters.'

Accompanying the letter was this 23-page cartoon-strip booklet titled, 'Is Allah Like You?' showing a Muslim family with a cruel father who then becomes kind after turning to Christianity

It featured brutal scenes which portrayed the Muslim father to be an aggressive man who repeatedly beat his children and wife, considering them both 'worthless'

The comic strip continues to show the man converting to Christianity, surrendering himself to Jesus, and showing love and affection to his family

White who was unrepresented said she had done nothing wrong, adding that she spent most of her money on sending Bibles to Muslim countries.

She told the court: 'The Jews said Jesus was mentally ill when he was preaching. There is nothing wrong with me. I can preach the Gospel today and the Muslim Quran says I have to preach the Gospel to them.'

After the case she said: 'The letter is not offensive - it just told the truth. As a Christian it's my duty to tell them to start worshipping Jesus.'