The Unlawful Activities (Prevention) Tribunal headed by Justice Suresh Kait, in its findings, referred to the speech made by Prime Minister Narendra Modi in the Lok Sabha on fast-tracking of criminal trials involving lawmakers.
"The Prime Minister said that the trial against MPs be concluded in a year and if they are guilty then they should be punished or they can sit in Parliament without any taint....
The panel also rapped various state agencies for sending notices to persons in a "casual" manner to appear before the tribunal.
The persons, who have neither been a member to SIMI nor faced any criminal trial, have been served with notices, it noted.
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"It is suggested that the central government should ensure that only connected persons should be served with the notices by the state agencies," it said.
The panel also said that the senior police officers, who have been deposing before it, are not well versed with the details of the investigation.
Justice Kait was appointed by the Centre to head the Unlawful Activities (Prevention) Tribunal to conduct the proceedings, including deposition of various witnesses, to ratify or reject the five-year ban recently imposed on SIMI.
The Ministry of Home Affairs, on February 6 this year, banned SIMI for another five years beginning February 1, saying that if not curbed the group will reorganise and "disrupt the secular fabric" of the country.
Extending the ban, the MHA, in its notification, listed 21 terror cases highlighting the alleged involvement of SIMI, including the rioting at Azad Maidan in Mumbai in 2012.