PinkCrayon
Being kept in for 5 mins isn't a formal detention.
Being kept in for something like that wouldn't be my first approach, but it isn't unreasonable.
Fuck off
There were no drip feeds
There was another situation?
There's some fairly substantial wider issues for your child that are entirely relevant to the original situation.
Had your opening post said something like:
DH has got into bother in school. He missed some instructions and was kept for a 5 min detention, now he's unsure on what to do for his homework for the same subject. The thing is he's actually struggling with the transition and his dad has passed away. How can I best talk to the school about this so he can have appropriate pastoral support and staff migt be able to cut him some slack if he is a bit distant
Then you'd have got much more useful advice much sooner in the thread.
Such as people still saying being kept in for 5 mins is much of nothing, gentle reminder and really, really not an issue, but also questions about timings of the sad loss, was it recent, did primary know, did they have things in place, was this information passed to the secondary school, if not then they need to know, what basis do people find out, would he benefit from additional transition support etc etc
Wider pastoral issues make a MASSIVE difference to what is reasonable and unreasonable in schools.
For example, some of our students with wider issues have a member of staff who mentors them, others have staff print the homework off or record it in a home-school book for a period of time, others we cut slack if they're understandably away with the fairies, others might get a specific 1-1 run through the homework, others get a time out card, others have key workers, others see counsellors on site, others have a bolt hole space they can go to or trusted members of staff to calm down, the list goes on and on. But all that can only be in place if everyone is aware and there's been communication.
Communication over potential pastoral issues is vastly more positive, productive and reasonable than complaining because your child was kept in for 5 mins and you think the teacher isn't experienced at year 7