Page last updated at 19:52 GMT, Friday, 2 May 2008 20:52 UK

'Bomb materials' in 7/7 plot flat

Waheed Ali, Sadeer Saleem and Mohammed Shakil
Waheed Ali, Sadeer Saleem and Mohammed Shakil deny the charges

Explosive materials were found in a home used as a bomb factory by the 7 July bombers, the trial of three men accused of helping the attackers heard.

Chemical residues, wires and explosives were among items found at a Leeds flat, the jury at Kingston Crown Court heard.

Waheed Ali, 24, of Tower Hamlets, east London, Sadeer Saleem, 27, and Mohammed Shakil, 31, of Leeds, are accused of reconnaisance for the 2005 attacks.

The men deny on charge each of conspiring to cause explosions.

The court has already heard the three men spent time with two of the bombers, Jermaine Lindsay and Hasib Hussain, on 16 and 17 December 2004.

Suicide bombers Lindsay and Hussain, along with Mohammed Sidique Khan and Shehzad Tanweer, murdered 52 people when they set off bombs on London Tube trains and a bus.

'Brown sludge'

Kingston Crown Court heard explosive materials were found scattered in "disarray" across various rooms at 18 Alexandra Grove, Beeston, which the jury heard was the "principle" site for the construction of the bombs detonated on the London transport network.

The jury, who were shown pictures from inside the flat, heard containers of a mixture of black pepper and hydrogen peroxide, used as the main charge for the bombs, were found sitting in the bath and traces of high explosive HMTD were on the cooker in the kitchen.

They also heard that the floor of the lounge in the flat was covered with bags of clothing and other items including heavy-duty gloves, masking tape, a rucksack and containers full of a "brown sludge", which was the pepper and chemical mix.

Empty bags of ground black pepper were found along with ice-cube bags and ice packs in the kitchen, which the court was told were used to keep the devices cool.

And plastic trays containing bicarbonate of soda and citric acid were also discovered.

A bath and explosive materials (Copyright: Met Police)
The jury saw photographs of bomb-making equipment in various rooms

A detective who examined the property told the court police had to recall an Army bomb disposal team to the scene after he discovered containers holding HMTD sitting on a hot-plate in a bedroom.

Clifford Todd, an expert from the Forensic Explosive Laboratory who conducted an investigation into the bombs used in the attacks, told the court that the devices all comprised of a pepper-based mixture and were initiated by an improvised electric detonator. The court was told that four other smaller devices, containing jars full of nails, were found in the boot of a car used by the bombers left at Luton railway station.

Mr Todd suggested that the bombs could have been thrown and may have been a provision if the main plan had not worked as expected.

He told the jury that he "seriously doubted" that the four bombers could have conceived and executed the detailed construction of their devices and would have had some "information, help or advice".

The trial has been adjourned until Wednesday.

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