Simplify the following text for a Grade 8 native English-speaking person.
Original: Colonel Sir Arthur Edwin Young , KBE , CMG , CVO , KStJ , KPM ( 15 February 1907 â `` 20 January 1979 ) was a British police officer .
Simplified: Colonel Sir Arthur Edwin Young , KBE , CMG , CVO , KPM ( 15 February 1907 â `` 20 January 1979 ) was a British police officer .