Perumal Balasubramaniam (2 June 1960 – 15 March 2013), also known as P.
Balasubramaniam and PI Bala, was a Malaysian police officer who garnered notoriety as the crown witness in the murder of Altantuya Shaariibuu in Shah Alam, Selangor.
He was a former member of the Special Branch Police Office (PDRM), and before that he served on Abdul Razak Baginda's payroll as a security officer, private investigator and possibly henchmen.
He became a controversial figure, after he retracted the statement he made in a sworn affidavit.