"All such erring police officers who are responsible and who become cause for failure in any prosecution case on account of their sheer negligence or culpable lapses or incompetence must suffer departmental action as has been recently held by the apex court...," a bench of justices Kailash Gambhir and Sunita Gupta said.
The court said "incompetence" and "culpable" lapses on the part of police officers "increases the rate of acquittals and results in multiplication of crimes in the society."
"This (acquittal) is primarily due to the incompetency of many such police officers who are entrusted with such a sensitive job of carrying out investigation into any crime and secondly because of lack of willingness on the part of the government to separate the investigation from the law and order, despite being directed by the Supreme Court many a times, right from the authoritative pronouncement in Prakash Singh vs. Union of India reported and various recommendations made by the Law Commission of India in this regard," it said.
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Jain had allegedly entered into a house at Rohini here on January 11, 2008 on the pretext of delivering sweets as he was blessed with a baby boy.
He, armed with a knife, assaulted Rajani after tying hands and gaging her mouth and attempted to rob valuables. He also threatened to kill her, police said.
As two relatives of the victim intervened, Jain fled from the scene and was later caught by police, it said.