Joseph Grimberg SC (8 April 1933 – 17 August 2017) was a Singaporean prominent lawyer and former Supreme Court judge.
During his time as Judicial Commissioner, one of the cases which Grimberg presided was the 1984 Amex banker murder case, where a banker named Frankie Tan was murdered by his foster brother Vasavan Sathiadew and three hired Thai killers, as planned by Tan's wife to avenge his frequent infidelity and spousal abuse.
Except for one Thai killer (who escaped Singapore and went missing till today), the rest of the five were arrested and charged with murder.
[4][5] Grimberg was also one of the two judges (the other being Lai Kew Chai) who sentenced Sim Ah Cheoh, a housewife and single mother of two sons, and her two bosses - Lim Joo Yin and Ronald Tan Chong Ngee - to death in 1988 for attempting to illegally import 1.37 kg of heroin from Singapore to the USA.
Sim was later granted clemency and her death sentence was commuted to life imprisonment in 1992, while both Lim and Tan were executed.