Regulation 3 Days excluded from the definition of permitted days of detention
A non-teaching day is not a permitted day of detention if it falls on a public holiday (whether or not it would be excluded from being a permitted day of detention under these Regulations but for this paragraph).
A non-teaching day falls within this paragraph if it falls within a term and it—
precedes the first school day of the term;
falls during the half-term break; or
falls after the last school day of the term.
A non-teaching day falls within this paragraph if it does not fall within a term.
A non-teaching day falling within sub-paragraphs (3)(b) or (c) is not excluded from being a permitted day of detention if all of the following conditions are satisfied—
it is a weekday;
it is a day immediately following the day on which the school breaks up; and
it is not a public holiday.
For the purposes of paragraph (5) a reference to the day on which a school breaks up is a reference, as the case may be, to the last school day before a half-term break or the last school day of the term.