Chief Constable David Shaw of West Mercia Police has written to former Chief Whip Andrew Mitchell to offer "a profound unreserved apology" over the 'Plebgate' meeting.
He told MPs from the home affairs select committee, he wrote a letter on Monday which was "a personal apology from me".
"It was a profound unreserved apology for the impact what has happened has had on him", he added.
The Chief Constable of West Mercia Police has offered an "unreserved apology" to ex-Chief Whip Andrew Mitchell over the 'Plebgate' meeting.
West Mercia Police chief constable has overturned a ruling that three officers who met Andrew Mitchell had no case to answer for misconduct.