Excerpt:
Fears that hardline Muslim governors have been infiltrating Birmingham schools go back at least two decades, and were raised with the government in 1994.
Sky News has learned that senior leaders at three schools in Birmingham were so concerned about the influence of Muslim extremists in the 1990s they took their fears to the top.
In a letter to education ministers, copied to then Prime Minister John Major, the heads said extremist group Hizb ut-Tahrir was gaining an alarming influence over schools in the city.