They confirmed that a man entered the second-hand shop at around 1pm and sprayed an accelerant , believed to be petrol, around before igniting it.
He added that a brick had been thrown through the window and a fire accelerant was thrown in on boxes containing paper documents.
Catherine took up Mandarin, one of the most difficult languages to learn, in the accelerant class at Tauranga Intermediate.
And so there's an accelerant effect for information flowing through the network.
A spokesman for Greater Manchester Police said: ‘We believe that this fire was deliberately started with the use of accelerants .’
But officers were there until 1.30 am to establish the cause of the blaze with help from a fire investigation dog, specially trained to sniff out accelerants .
During the siege he set off a fire extinguisher and told the police he had accelerants .
We don't know if it's arson or if the fire was caused by an electrical fault in the car but we will know more later today when the sniffer dogs establish if any accelerants were used.
A sniffer dog detected numerous accelerants at the scene, though police are uncertain whether they were used to start the fire, or just recreational material left by squatters.
We know there was a break-in at the school and that a fire started somehow, but accelerants were not used.