The legal threshold for a slap in England is it cannot leave a mark. Do you have any more info on what exactly the boy meant by being hit?
From the fact that he's mentioned it to a tutor, I expect it to be more than an occasional light smack, and I think from your comments OP you do realise that too. I am professionally involved in safeguarding and have level 3 training. The law says you have to report.
To all those quoting cultural circumstances, you should read the Laming report on Victoria Climbie's death.
It says 'Every organisation concerned with the welfare and
protection of children should have mechanisms in place to ensure equal access to services of the same quality, and that each child, irrespective of colour or background, should be treated as an individual requiring appropriate care (p3 46). '
Here's a quote from a paper than references it:
"The
Laming Report, which suggested that some
professionals’ practice might have been affected
because of their fear of being accused of racism. As
the Counsel to Inquiry noted:
Race can affect the way people conduct themselves…
Fear of being accused of racism can stop people acting
when otherwise they would. Fear of being thought
unsympathetic to someone of the same race can change
response (p346).
This point relates to the one about training. Perhaps
one reason why professionals are fearful is that they feel
inadequately trained or prepared to work with families
from all ethnic backgrounds. So, instead, they either
try to avoid the issue by pretending ethnicity does not
matter when working with people from diverse
backgrounds, or draw upon their own limited
knowledge and experiences of ethnic minority families,
which may include many stereotypes and prejudices; or
perhaps they acknowledge their own limitations and
do the best they can in the circumstances, aware that
some ethnic minority families may not be in receipt of
the services or practices they deserve; or even try to pass
the responsibility to another worker or professional
from the same ethnic background as the family. These
strategies are not mutually exclusive, but they all have
their problems and/or limitations. "
From here
sci-hub.yncjkj.com/
Chand, Ashok (2003). ‘Race’ and the Laming Report on Victoria Climbie: Lessons for Inter‐Professional Policy and Practice. Journal of Integrated Care, 11(4), 28–37. doi:10.1108/14769018200300040
I would say report it to social services directly, rather than through the school, as you are a professional who isn't employed by the school. Childline would be fine if you feel more comfortable doing that.
You can call Childline to report if their online form isn't working.
Unless we challenge child abuse every time as a country it will remain endemic.