He was accused of 'assault'. = He was charged with 'assault'. = 'Assault' charges were brought against him.
He came 'under assault' for his unusual beliefs. [=he was severely criticized for his unusual beliefs]
He was found guilty of 'sexual assault'. [=the crime of touching someone in an unwanted sexual way]
(..) - Been here long? Long enough. Gimme the cash! ls that a Z- ? Alleviated titanium. Neuro-charged assault model? - Yeah. Good thing it's not loaded! What do you mean? You have to push the yellow button to load it. (..)1997 The Fifth Element