Complex sentence: During the recent restructure of 2010 Principal Officers were offered employment as Developing Prison Service Managers (non-uniformed) those that declined this offer remain as Principal Officers however recruitment to this rank has closed.
Split into simpler sentences: During the recent restructure of 2010 Principal Officers were offered employment as Developing Prison Service Managers (non-uniformed). Those that declined this offer remain as Principal Officers, however recruitment to this rank has closed.