It was discovered during a number a searches on Thursday night.
Officers and student officers attended a number of incidents, including 3 domestic ones.
Knuckle dusters are banned from being imported, made or sold in the UK.
It is also a crime to carry such a weapon in a public place.
Residents angry at plans to sell land at Central Park
Council say house there has been empty for years
Girl who died at Cornish beauty spot named
She was from Newton Abbot
South west police hunt for London man
He's wanted following reports of theft
Devoncast: Inquiry into grooming gangs and the Women's Rugby World Cup
Local Tories say they'll work with police and crime commissioner
Man arrested following lectern theft
It went missing in May
