C.L.I.F. 4 (Chinese: 警徽天职4, short-form for Courage, Loyalty, Integrity, Fairness, commonly pronounced as cliff) is a Singaporean police procedural series produced and telecast on Mediacorp Channel 8 in collaboration with the Singapore Police Force. The fourth installment to C.L.I.F. in 2011, the series will begin its run from 6 September 2016. The series stars Li Nanxing, Rui En, Elvin Ng, Zhang Yaodong, Sora Ma, Ya Hui, Mei Xin and Yusuke Fukuchi as the main characters of the series. The series is co-sponsored by Sheng Siong Supermarkets and Soon Bee Huat. This is also the first C.L.I.F. series to feature a VSC police officer.