[hoosiermama]

said police were evacuating homes in High Wycombe,..., near one of the houses being searched.

Explosives in the home?

[Sacajaweau]

"Come out, come out...wherever you are"

"You dirty rats".

[BJClinton]

Explosives in the home?

I would assume so; they were made somewhere. It wouldn't be too hard to slap together some kind of nitromethane compound out of somewhat common materials.