Barnsley fans attending tomorrow's match against Millwall have been warned police will take a 'tough line' on anyone causing trouble.
The game is the Reds last of the season and will be the second in successive weeks where extra officers have been brought in to police the crowd.
Several hundred officers were on duty as Barnsley played Sheffield United last week. The event passed off without much trouble - despite the Blades' relegation.
Tomorrow's game is also seen as a potential flash point but Superintendent David Hartley said extra resources were in place.
"I have a commitment to ensure people remain safe therefore will be taking an extremely tough line on anyone that is involved in football-related disorder."
He said police and stewards would be on every turnstile and anyone who was drunk, in possession of drugs or weapons would be refused entry. He thanked supporters for maintaining an enjoyable atmosphere this season.
