He said the yellow material found on Miss Manning's face could have come from paint.

BBC: Rachel Manning 'strangled and hit 10 times'

The only plastic objects that can not now be recycled are heavily contaminated items, such as paint pots and plastic products, such as carrier bags, coal sacks, and clear material used to seal food containers.

BBC: Guernsey States introduces more plastic recycling

Furthermore, there is an alternative explanation for the "thermitic material" the sceptical scientists found in the dust - it is just a type of primer paint.

BBC: 9/11 conspiracy theories