Hertsmere Jewish Primary has committed more than two dozen breaches of the admissions code, an independent schools adjudicator has found.
The adjudicator, Canon Richard Lindley, identified 26 breaches and told the school to clarify its code for the 2012 intake.
A parent contacted the Office of the Schools Adjudicator in October over an admissions issue. Canon Lindley initially refused to deal with the objection because of its late submission but then "discovered what I considered to be a large number of breaches of the requirement of the school admissions code".
He concluded "that the arrangements have been devised without sufficient thought to the needs of parents.