With Longitude festival kicking off this Friday, An Garda Síochána are ramping up safety measures in conjunction with festival promoters.
In a press briefing at Marlay House this morning, gardaí explained that large bags and backpacks will not be allowed in the festival.
“The main message is asking people to arrive early at the concert site. There will be extra searches this year as against other years including more robust bag searches," said Superintendent of Tallaght Garda Station Peter Duff.
Only small bags measuring no bigger than an A4 sheet (8.27in/21cm x 11.7inx29.7cm) will be permitted and subject to search on entry.
There will be no cloakroom or storage facilities so to avoid lengthy queues concert goers are advised not to bring a bag.
The heightened security measures mean attendees may be subject to pat-downs and metal detectors and any items left at the entrances will be disposed of accordingly.
Fold up chairs, professional cameras with detachable lenses, excessive amounts of cigarettes and anything that can be perceived as a weapon are among the banned items at the concerts.
Also banned are fireworks, illegal or unidentifiable substances, laser pens and "legal highs".
Anyone attending the three-day music marathon is also advised to take use of public transport when travelling to the event.
There will be a strict no alcohol policy implemented on public and private roads to the venue and anyone who arrives intoxicated will not be permitted entry.
Gardaí are operating a zero tolerance policy regarding alcohol consumption in local public areas.
"We ask people to use public transport where possible. Again, anybody who brings any alcohol or any sharply pointed objects may be refused entry into the ground.
"People who are obviously intoxicated will be refused entry as well. We ask people to respect people who live and work in the Marlay Park general area when coming to and from the concert site," Superintendent Duff added.
The promoters have issued a public information notice in which they say there will be a strict no alcohol policy implemented on all public transport and private buses travelling to the venue.
Some locals have previously objected to anti-social behaviour, alleged under-age drinking, and concert-goers urinating in public places at gigs at Marlay Park.
In 2016, 25 Rathfarnam residents objected to a licence to serve alcohol at the event. The objection was denied by Judge Michael Coghlan who said the residents must have known the festival was not a "teetotaller convention".
Under 16s must be accompanied by a ticket holding adult for entry. You may be asked to prove your age with photo ID.
The forecast for the weekend is quite changeable and fans are asked to wear weather appropriate clothing but note umbrellas will not be allowed.
Longitude, which runs from 14-16th of July in Marlay Park, sees headline acts like Stormzy, The Weeknd and Mumford and Sons.