There are claims that parts for what would be the first-ever gun produced in Britain by 3D printing, may have been seized by police in Manchester.
They were recovered during a week long operation against organised crime.
Detectives have sent the items for testing, but the owner of the shop where they were found strongly denies they were for a firearm, saying they were in fact parts from the printer itself.
This report from Adam McClean
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Sunday evening's forecast for the NW with Emma Jesson.
High pressure is in charge for the start of the week, a couple of fronts introducing dampness at times. Clear spells developing Sunday night
Sunny start to Sunday, feeling chilly. Patchy cloud further east, temperatures soon lifting. Fine afternoon