The Delhi Police today told the Delhi High Court that the CCTV footage recovered from the official residence of Chief Minister Arvind Kejriwal in the Chief Secretary assault case was tampered, and that it would be sent to the Forensic Science Laboratory for further examination.

The court has reserved its order till tomorrow.

Last week, Delhi government's Chief Secretary Anshu Prakash alleged he was slapped by two Aam Aadmi Party (AAP) MLAs - Amanatullah Khan and Prakash Jarwal - during a late-night meeting at Kejriwal's home.

On Friday, 45 Delhi Police personnel had conducted its search at Kejriwal's residence for the CCTV footage of the alleged assault.

Later, the cops said they found no cameras in the drawing room where the Chief Secretary was allegedly assaulted. Seven out of the 21 CCTV cameras in the house, they said, were not functioning.

"The timing on cameras in the house was running behind by 40 minutes 43 seconds," a senior Delhi Police official said, adding those responsible for maintenance of the CCTV cameras were questioned.

An angry AAP had hit out at the central government, terming the action as "police raj" and "police ki dadagiri", and daring it of conducting a similar raid at BJP President Amit Shah's house in Judge BH Loya's death case.

"To investigate two alleged slaps, the police search a Chief Minister's house. Doesn't Judge Loya's murder merit an interrogation," Kejriwal tweeted, referring to the judge who died of a heart attack in December 2014 at a time he was handling the Sohrabuddin case in which Shah was an accused.

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