Internal truancy is when pupils are in school but not in class
If they attend morning and afternoon registration, usually at form time, this won’t show up as absences in your attendance data.
However, internal truancy is a safeguarding issue, as you can’t supervise pupils if you don’t know where they are. As well as this, any areas where pupils might be truanting, such as toilets, may be less safe for other pupils.
Internal truancy also means that pupils are missing education and are at risk of falling behind.
Have clear communication systems in place
Appoint someone to monitor whether registers have been taken. This could be your attendance officer, or a senior