http://www.dailymail.co.uk/pages/live/articles/news/news.html?in_article_id=356259&in_page_id=1770Police are today still trying to establish the type of explosives used in the London bombings, which killed at least 56 people. Forensic experts are scrutinising the four blast sites to determine the exact make-up of the substance and to see whether it can be linked to the home-made explosives found at a so-called "bomb factory" at a property in Leeds.
Early reports suggested the bombers had used a military plastic explosive during the attacks on the capital's transport network.
It was later claimed that police had found acetone peroxide - a highly volatile mixture also known as "Mother of Satan" or TATP - in a bath during a raid on a property in Leeds....
However, the source said police were still carrying out tests to establish its exact make-up and to see whether there was any link to the substance used by the four London bombers.