About 150 grams of the white powdery explosive PETN (Pentaerythritol tetranitrate) was found wrapped in a paper close to the seat of the Leader of the Opposition Ram Govind Choudhary two days back, Adityanath said as soon as the Assembly met for the day this morning.
The explosive kept under the cushion of a seat, third from where the Leader of Opposition sits, was found by the cleaning staff on July 12 after even the dog squad had failed to detect it, he said, describing it as a security breach.
The quantity of the explosive was 150 grams. According to experts, 500 gm of this explosive is enough to blow up the House, the chief minister said.
"The security of the House is our concern. This is part of a dangerous terrorist conspiracy and should be exposed. The state government wants to get an NIA probe done in the matter and police verification of employees and officials working in Vidhan Bhawan," he said in a suo moto statement.
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Uttar Pradesh Police swung into action and registered an FIR against unknown persons under various sections of Unlawful Activities Prevention Act and IPC sections 120B (criminal conspiracy) and 121A (conspiring to wage war).
PETN is one of the most dangerous plastic explosives available in the black market and preferred by terrorists as the colourless crystals easily pass through security checks.
Additional Director General (Law and Order) Anand Kumar later told reporters that 150 grams of PETN was not sufficient to cause any explosion.
He explained that for an explosion, three things are needed - explosive, detonator and power pack (source of power). "Here only explosive has been found," Kumar said.
In the home department press briefing, IG (ATS) Aseem Arun said the probe has been taken over by the ATS. He said fool proof security arrangements will be made.
To a question as to from whose seat the explosive was found, Arun said, "The seat is identified and if needed we will inquire from the member and those sitting around him. We are getting support from all."
Stressing that there should be no compromise on security, Adityanath said joint efforts were needed to ensure this.
"It is a dangerous tendency that the security of the assembly has been breached when the House is in session," the chief minister said.
Adityanath noted that it was not just a matter to be condemned by the House, but the need was to give a befitting reply.
The Speaker then said, "We all agree for the NIA probe to be done in the recovery of explosives to expose the conspiracy behind this."
The chief minister also said, "As no one is allowed inside the House except legislators and marshals, the matter becomes serious. The matter is related with sentiments of 22 crore people of the state. As we have no objections in checking at airports, we (legislators) should also support this here. I also ask them not to bring mobile phones and keep their bags outside the House and a system should be evolved for this."
"There should be Quick Response Team (QRT) at every gate and there should be a uniform security system. We have decided to pass a resolution to condemn such an act. Some persons are up to doing mischievous acts and NIA should expose them", he said.
Noting that the UP Assembly was the biggest in the country, Adityanath said the entire country keeps an eye on proceedings here with a hope to "see something new and good".
After the chief minister's statement, the Speaker announced several measures to ensure security of the House besides agreeing to recommend an NIA probe.
"We have met earlier (before the House assembled) and decided on several security measures to be introduced in the House. On all the gates QRT of Provincial Armed Constabulary (PAC) will be deployed and whole body scanners will be installed. All the entry pases issued to MLAs and their representatives will be cancelled and only one vehicle pass will be issued to MLAs," the Speaker said.
Passes issued to former MLAs and others will also be cancelled and police verification of assembly staff will be done, he said.
The Speaker also allowed an Anti-Terrorist Squad (ATS) team inside the House, stating that "we are a family and no one will be allowed to raise a finger at it".
Parliamentary Affairs minister Suresh Kumar Khanna said all measures, as directed by the Speaker, will be taken to ensure Vidhan Bhawan's security.
The Leader of Opposition said they accepted the measures stating that no one should be allowed to breach security of the House.
SP members expressed shock over the recovery of the explosive material.
"It is astonishing. How is it possible? Explosives reaching inside the House is a serious matter," said SP legislator Shailendra Yadav.
Leader of Opposition Ram Govind Chowhdury (SP) said the matter was serious and the security of the House should be taken care of.
While some members like Nitin Agarwal (SP) got to know about the development through media reports, others were seen updating their fellow legislators about it.
Farhan Ahmed was arrested yesterday and his mobile phone seized, Additional Superintendent of Police Chiranjeevi Sinha said.
However, ADG Anand Kumar said it would be too early to link Ahmed with the recovery of the explosive from the Assembly.
Ahmed, 20, had allegedly told the ADG (Law and Order) on his mobile phone that he would blow the UP legislature building on the Independence Day.
He is being interrogated by local police and intelligence officials from Delhi, Sinha added.