During the trial of the conspirators, the prosecution stated that each bomber would board a plane with the "necessary ingredients and equipment". They would then construct the devices mid-flight and detonate them. The hydrogen peroxide would be placed in 500 ml plastic bottles of the Oasis and Lucozade soft drinks. A sugary drink powder, Tang, would be mixed with the hydrogen peroxide to colour it to resemble a normal soft drink. Hydrogen peroxide is widely available for use as hair bleach and along with the other ingredients can become explosive if mixed to a specific strength. The mixture would be injected into the bottles with a syringe. The bottle's cap would not have been removed and the hole would have been resealed, thereby allowing the device to resemble a normal, unopened drink bottle when screened by airport security. The use of liquid explosives with dissolved powder is similar to the composition used in the 21 July 2005 London bombings, using hydrogen peroxide and chapati flour, activated by a detonator.