A pair of academies in North London have promised to re-write guidelines which ban the promotion of homosexuality.
The single sex Crest Academies in Neasden have been accused of reviving the controversial Section 28 Law, which was repealed in 2003.
The school said it's committed to diversity, tolerance and equality. It says the inclusion of Section 28 was an oversight.
New figures show that half of London's state secondaries are now academies.
With dozens more planned in the capital, traditional schools could soon be in the minority.
Paul Brand reports.