Complex sentence: Dudley Borough Police, Walsall Borough Police and Wolverhampton Borough Police were incorporated wholly into the new force, and it also took in part of the Staffordshire Constabulary and Worcestershire Constabulary.
Split into simpler sentences: Dudley Borough Police, Walsall Borough Police and Wolverhampton Borough Police were incorporated wholly into the new force. It also took in parts of the Staffordshire Constabulary and Worcestershire Constabulary.