Question

Where Investigation begins ?
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Answer 1

Answer:

The investigation into the cause of the Wednesday blast was led by a team of investigators from the Maine Fire Marshal’s Office and the federal Bureau of Alcohol, Tobacco, Firearms and Explosives, said Stephen McCausland, spokesman for the Maine Department of Public Safety.

The investigators began interviewing workers and got their first look at the damage on Thursday, McCausland said.

The blast happened in a massive, kettle-like “digester” where a slurry of wood chips, water and chemicals is transformed into pulp. Nearby vehicles were covered with a thick, brown substance that fell from the sky after the blast.