Complex sentence: In 2001, Thames Division was renamed the Marine Support Unit, and again in 2008 to the Marine Policing Unit, and is responsible for the 14 miles of the River, lying between Hampton Court and Dartford Creek.
Split into simpler sentences: In 2001, Thames Division was renamed the Marine Support Unit, and again in 2008 to the Marine Policing Unit. It is responsible for the 14 miles of the River, lying between Hampton Court and Dartford Creek.