More than 50 revellers were arrested for minor drug and public order offences at three Dublin concerts.
Gardaí have said there were no serious issues at the open air events at Dublin’s Marlay Park this week.
A large security presence was put in place amid fears younger fans of DJ David Guetta could cause trouble similar to that at a Swedish House Mafia concert last month.
About 175 gardaí were deployed in and around the Rathfarnham area for Friday night’s dance event headlined by Guetta and popular with younger revellers, mostly in the 17-25 age group.
Gardaí said a total of 35 people were arrested on Friday.
A Garda spokesman said that close work with promoters MCD and council chiefs ensured concert-goers had a safe and enjoyable experience.
“We wish to acknowledge the co-operation and good behaviour of the patrons of the three concerts which went off without any serious issues,” said a Garda spokesman.
“We would like to acknowledge the co-operation and good behaviour of those attending the concerts.
“We also wish to acknowledge the co-operation of the local community around Marlay Park.”
Less than 20 people were arrested at the first night in Marlay Park – where Kasabian headlined on Thursday after Noel Gallagher’s High Flying Birds - including one man being treated for head injuries.
And there were no arrests at the final of the three Marlay Park gigs last night, with Tom Jones and Van Morrison headlining.
The tightened security was introduced to prevent a repeat of the scenes at the Swedish House Mafia gig in the Phoenix Park in July where nine people were stabbed and two died from suspected drug overdoses after attending the concert.
The incidents sparked massive outcry and debate over the organisation and policing operation of similar events.
Gardaí, meanwhile, say 412 refunds were given out to those under the age of 17 at Friday night's Guetta gig, while a number of other patrons were refused entry.