The court heard how Gardai heard noise coming from the Snug Bar on the town’s Main Street after 1am.
When Gardai went to investigate, they found around 30 people on the premises.
The licensee of the premises, Angela McConnell, of 15 Derry Road, Strabane, was charged with six counts of allowing alcohol to be consumed on her premises after hours and six counts of alcohol to be sold on her premises after hours.
Defense solicitor Donagh Cleary said there had ben a surprise engagement in the bar that night and that was one of the reasons why patrons had been late on the premises.
He said customers had ordered a mini-bus but there was a common problem with a lack of taxis in the Twin Towns area.
He said Ms McConnell had been the licensee of the premises for eight years and had no convictions for after-hours drinking.
Judge Paul Kelly was told that closing time on the premises was supposed to be 12.30am.
Judge Kelly ordered Ms McConnell to pay €250 to Planet Youth and if the donation was paid he would strike out the matters.