Bombers' inquest hears of mystery figure in Pakistan

The July 7 extremists received bomb-making instruction from a mystery figure in Pakistan, an inquest heard today.

The Leeds based group, who perpetrated the worst single terrorist atrocity on British soil, carefully constructed their home-made devices using a cocktail of concentrated hydrogen peroxide and pepper.

Lacking the expertise themselves, they are believed to have been guided by an unidentified individual in Rawalpindi.

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Mobile phone records analysed in the wake of the bombings revealed a series of calls made from phone boxes in Pakistan to ringleader Mohammed Sidique Khan.

One of these, on July 2, 2005, five days before the devastating explosions, lasted for six minutes, Detective Sergeant Mark Stuart of the Metropolitan Police told the inquest at London's Royal Courts of Justice.

Hugo Keith QC, counsel to the inquests, asked him: "Did you asses that those calls therefore were probably connected to some guidance or some means of communicating information concerned with the manufacture of the bombs and then ultimately their detonation?"

"Yes, I think they had to be," he replied.

Many of the calls, though made from different phone boxes, were made within minutes of each other, suggesting whoever phoned Khan was intent on concealing their identity, the inquest was told.

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The inquest into the deaths of the 52 people killed on the morning of July 7, 2005 heard how Khan never made any calls to Pakistan himself in an effort to avoid detection.

Instead, detectives believe he gave the details of four operational phones, used purely for the purpose of the terror mission, to contacts in the country.

The majority of conversations with a figure in Pakistan took place between May and June 2005.

However, the last call to Khan was recorded on the afternoon of July 7, when the attacks had been "brought to worldwide attention", the inquest was told.

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DS Stuart agreed it was likely that Khan always spoke to the same person who moved from one phone box to another, either for protection or because he may have struggled to get through.

"I think these call boxes (were) actually (in) shops where there might be a number of people waiting to use them so he may have moved on for that reason," he said

Pans found on the kitchen hob of the flat at Alexander Grove in Leeds were used to boil down hydrogen peroxide, a key ingredient in the deadly homemade devices used by bombers Mohammed Sidique Khan, Shehzad Tanweer, Hasib Hussain and Jermaine Lindsay.

Throughout the two-bedroom ground-floor council flat were hot plates linked to fans that were used to make the chemical more concentrated.

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Plastic tubs containing a yellow-brown sludge were left open in one of the bedrooms and packaging from other bomb-making items littered the lounge.

The mess was discovered on July 12 – five days after the attacks – as the police investigation shifted its focus north from London to Yorkshire.

As well as finding two kinds of high explosive, officers collected an improvised detonator, respirators and scraps of paper, which listed items needed to make the bombs and indicated how much of each chemical the devices should contain.

The detonator was made from a lightbulb, wire, aluminium foil and a high explosive called HMTD, heard coroner Lady Justice Hallett, sitting at the Royal Courts of Justice in London.

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Detective Constable Richard Reynolds, a Metropolitan Police counter-terrorism officer, told the hearing: "A lot of these items have an innocent everyday use, but in the context of this particular inquiry are significant."

The terrorists used respirators because the hydrogen peroxide gave off noxious fumes as they boiled it down, killing plants outside one of the flat's windows and blistering the paintwork inside.

Dc Reynolds said the bomb-making environment would have been "quite hostile".

Although none of the explosives or equipment were kept hidden inside the flat, curtains taped to the windows protected the bomb-making operation from the gaze of passers-by.

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Gareth Patterson, barrister for four of the victims' families, questioned whether neighbours might have noticed the bleach-like smell of hydrogen peroxide.

Dc Reynolds said: "Potentially there's an unusual smell generating from the open window... I would be inquisitive if I smelt that, and I would go and have a look at it – but that's just me."

The bombs used in the attacks contained about 10kg of explosives made from a mixture of concentrated hydrogen peroxide and pepper and were detonated by a nine-volt battery.

Forensic explosives expert Clifford Todd told the hearing that using this combination of materials for a bomb was thought to be "entirely unique" both in the UK and worldwide.

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He agreed with a suggestion that the four July 7 terrorists would have needed "guidance and instruction from elsewhere" to be able to make the devices.

Mr Todd said the fact that the bombers' identification documents were found intact at all four bomb sites indicated that they made deliberate efforts to ensure they could be identified after the attacks.

Lady Justice Hallett noted: "Plainly, no attempt was made to ensure that they couldn't be identified. On the contrary, it looks almost as if they had made attempts to ensure they could be."

The court has heard that, on the morning of the bombings, Khan, 30, Tanweer, 22, and Hussain, 18, drove in a Nissan Micra from Leeds to Luton railway station, where they met Lindsay, 19, who had grown up in Huddersfield.

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The four then took a train to Kings Cross, where they hugged each other and separated to carry out their murderous campaign.

The coroner has been shown pictures of bombs found in the Micra, which had nails taped to the outside and could have been thrown at police if the terrorists were caught.

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