Cambridge University promises its students ‘a supportive environment’ and ‘specialist assistance should you need it’. ‘Students who are struggling with a particular problem or feeling a bit lost won’t go unnoticed,’ it reassures us. ‘Don’t worry.’ But when the Guardianrevealed last week that Cambridgeshire police have attempted to infiltrate student activist groups and record the names and details of protesters, the university declined to comment, saying the case was a matter for the police.