Teams from the partner agencies conducted checks for rod licences, permits and anti-social behaviour in the Bewdley and Stourport areas of Worcestershire.
Police Constable Mike Roberts, rural and business crime officer for North Worcestershire, said: “Officers and bailiffs spoke with anglers, walkers and those who work on the river, sharing information and crime prevention advice.
“The Environment Agency operate a confidential reporting line, where members of the public can report any concerns around fisheries crime on 0800 807060.”
Kevin Pearson, Midlands regional enforcement support manager for the Angling Trust, added: “Having good partnership working with the police and the Environment Agency is vital if we want to reduce illegal fishing and fish theft on our rivers, lakes and canals, and the joint patrols we arrange under Operation Leviathan are a perfect example of that.
“Our voluntary bailiffs are the ‘eyes and ears’ of the waterways and enjoy every opportunity to support our partners in our joint efforts to tackle fisheries crime.”