The government's decision not to sanction the prosecution of some Intelligence Bureau officials in Ishrat Jahan's murder case "is a blatant attempt to subvert the case", the CPI-M said on Tuesday.
The Central Bureau of Investigation (CBI) had proceeded to chargesheet those involved in the June 2004 crime in Gujarat, including four officials of the Intelligence Bureau.
The home ministry's decision to protect these people "is unconscionable", the Communist Party of India-Marxist said in a statement.
"Both the BJP government at the centre and the BJP government in Gujarat are working in tandem to undermine the cases involving false encounters and killings by the police," it said.