grievous bodily harm
noun /ˌɡriːvəs ˌbɒdɪli ˈhɑːm/
  /ˌɡriːvəs ˌbɑːdɪli ˈhɑːrm/
 [uncountable] (abbreviation GBH)
 (British English, law)- the crime of causing somebody serious physical injury
- He was convicted of causing grievous bodily harm.
 - He was found not guilty of inflicting grievous bodily harm.