Three SITs of Punjab Police and the CBI, which probed 3 politically sensitive cases related to desecration of Guru Granth Sahib in Bargari have failed to make any headway. They contradicted each other instead of nabbing culprits. Four years on, the most important question — who did it — remains unanswered. Ravinder Vasudeva recaps four probes and finds that things stand exactly where they started.After the sacrilege of Guru Granth Sahib on October 12, 2015, and subsequent firing on Sikh protestors in Kotkapura and Behbal Kalan in which two Sikh youth were killed, the then SADBJP government, faced with anger among the Sikhs, formed the SIT under ADGP (now DGP, Punjab Armed Police) IPS Sahota. The SIT was quick to claim a breakthrough at a press conference on October 21, 2015, terming the Bargari sacrilege incident “a handiwork of some foreign handlers”.