A Birmingham headteacher has spoken of her “devastation” after her school’s exam results were torn up following a government cheating probe.

The Department for Education annulled Dorrington Academy’s summer SATs results in an investigation into maladministration.

The 700-pupil Perry Barr school was scrubbed from the national league table of primary schools, published last week.

Head Loretta Barratt said the ruling robbed Dorrington of a place among the country’s best-performing primaries.

“It should have been the best year we ever had – we were heading for outstanding,” she said.

“We had the most phenomenal cohort of pupils. We were meant to be celebrating becoming an outstanding school.

“Someone, for their own reasons, has not allowed that to happen.

“I am devastated, the staff are devastated. It has been a very difficult time.”

Parents were given the news, which affected 11-year-olds sitting test-based assessments, two weeks ago.

Details of the alleged breach of regulations were not revealed.

Miss Barratt said: “I have been instructed by the legal department that I cannot say any more.”

She added: “We have appointed an external invigilator to oversee exam procedure.

“As a manager of this school, I am going to make sure the integrity of future procedures takes place. To that end, everything will be moderated externally.”

Chairman of governors Lorraine Gumbs said: “Of course it’s a shock, you don’t expect your results to be annulled.

“Parents – and I’m one of them – have been fine and been kept informed.

“I’ve had no comeback.”

Dorrington is the second Birmingham school to fall foul of the Standards and Testing Agency within months.

It was revealed in October that SATs results for Regents Park Primary, in Small Heath, had been declared void amid “doubts over their validity”.

Weeks before the announcement, head-teacher Tina Ireland and deputy, Michelle McCusker, had resigned.

A Department for Education spokesman refused to reveal the nature of the investigation at Dorrington.

He said: “The number of schools where results have been amended or annulled due to maladministration this year is consistent with previous years and illustrates the majority of schools administer the tests rigorously.

“Instances of maladministration that lead to the annulment or amendment of children’s test results are rare, but completely unacceptable.”