India, July 23 -- The Delhi high court on Wednesday issued notices to the Centre and the Delhi Police while hearing two petitions seeking a probe by a Special Investigation Team (SIT) in alleged police excesses on Cockroach Janta Party (CJP) student protesters at Jantar Mantar, saying the incident was not "isolated."

Asking the Centre and the police to file responses, a bench of Chief Justice DK Upadhyaya and justice Tejas Karia directed police to preserve the CCTV footage, videography and other digital records related to the incident.

The petitions filed by lawyers Umesh Kumar and Anshul Kumar will be heard on September 11, the bench said.

"Is it a case of some isolated individual incident? Perhaps no. This is one. Number two, if it w...