 They make up SPS’s line units and are grouped under four clusters – Cluster A and B which are within the Changi Prison Complex (CPC), Cluster C which includes the Prisons School, and Operations and Security Command (OSC).SPS has seven staff divisions - Operations, Staff Development, Corporate Services, Rehabilitation & Reintegration, Strategic Planning & Research, Intelligence, and Psychological & Correctional Rehabilitation Division (PCRD) – that comprise 29 staff units; as well as three standalone units, namely, Corporate Communications & Relations, Provost, and Staff Inspectorate.The Community Action for the Rehabilitation of Ex-Offenders (CARE) Network was formed in May 2000 to coordinate and to improve the effectiveness of various agencies engaging in rehabilitative works for ex-offenders in Singapore.