Complex sentence: PITO and Centrex were both abolished when the NPIA became operational, and has formal responsibilities for police forces in England and Wales but, unlike PITO, not for the eight Scottish forces.
Split into simpler sentences: PITO and Centrex were both abolished when the NPIA became operational. The NPIA had formal responsibilities fin respect of police forces in England and Wales but, unlike PITO, not for the eight Scottish forces.