A quad bike and several dogs were seized from a travellers camp.
A stolen vehicle was also discovered, when Wakefield District Police, Wakefield Council and partner agencies searched the site at Barnstone Vale, Stanley on Thursday morning, after reports of anti-social behaviour and offending.
Officers said: “During the operation agencies recovered a stolen vehicle and seized a quad bike. Dogs were also seized and enforcement action will be taken.
“Several potential environmental crime offences were also discovered and are now under investigation.”
The Department for Work and Pensions, HM revenue and Customs, a Wildlife Officer and HM Court and Tribunal Services were all involved in the operation.
And police said the Benefits Agency also carried out checks and is making follow up enquiries.
All vehicles and caravans were examined to check they were using legal fuel and were road worthy.
Inspector Geoff Carter said: “This was a large scale and highly visible operation mounted with partners in response to reports of anti-social behaviour in this area.
“I want to thank partner agencies for the excellent support they showed and hope the action taken demonstrates that we do listen and will react to local concern.”
Anyone with information about crime or anti-social behaviour across the district is asked to contact their local NPT via 101 or call Crimestoppers anonymously on 0800 555 111