There is a news article about the crackdown on non-attendance at school. It includes the statement:
Parents have told us about very strict schools actually forcing entry to their homes. Schools are turning up with community police.
Without proper legal justification forcing entry into someones home is a serious violent crime. Citizens advice have a page that lists situations where police are allowed to do this, it talks about a search warrant and various "emergency" type situations that do not appear to apply here. The is also the court service rules on forced entry, but those are even less likely to apply.
Is there a likely legal justification for such a forced entry?