
NEW DELHI: Investigators said that the explosive used in the blast near the Red Fort may have been triacetone triperoxide (TATP), known infamously as the Mother of Satan. It is a type of explosive that explodes with heat without a detonator. Forensic experts are on the work to confirm whether it was the same explosion that occurred in Delhi.
Police had earlier suspected that ammonium nitrate may have been used in the blast. The investigation team concluded that Dr Umar Mohammed, who was driving the car, was aware of the explosive potential of TATP.
TATP is considered by experts to be a highly reactive explosive. Any change in the physical environment, such as friction, pressure, or an increase in temperature, can cause an explosion. Unlike ammonium nitrate, which is chemically and thermally stable and requires an external explosion, TATP does not require a detonator.
TATP is known as the 'Mother of Satan' because of its widespread use in illegal bomb making. Traces of TATP were found in the 2017 Barcelona attack, the 2015 Paris attack, the 2017 Manchester bombing, and the 2016 Brussels bombing. Investigators also believe that those who make such explosives have received terrorist training.
TATP is an explosive capable of producing powerful shock waves. The damage patterns at the site of the Delhi blast point to TATP. The intensity of the blast suggests that the explosive could have detonated under heat or disintegrated inside the vehicle. Forensic experts are also investigating whether it was accidentally detonated while being transported for another major terrorist operation.
Officials are also investigating how Umar procured the chemicals, as multiple ingredients are required to make TATP. They are also investigating whether Umar received external support or whether others were involved in preparing the explosive. Delhi Police and central agencies are reviewing digital trails, travel documents and communication details to verify Umar's activities before the blast.