HERE are garda detectives openly on patrol on the streets of Poznan.
The gardai were pointing out troublemakers to the local police -- as well as advising the locals about distinguishing good-natured banter from aggression.
Chief Superintendent Michael O'Sullivan, who leads a team of gardai working in Poland, said that the local police "have dealt exceptionally well with Irish fans".
"We are very happy. No matter what the result the Irish will sing.
"The biggest problem that we have is that our own fans tend to drink too much.
"The problem for us as police is trying to get the fans to go to the game early, use public transport, arrive and leave early and be safe."
But he added: "We've had no problems with the Polish authorities or the Polish fans. It's just to keep our own fans to be good fans, which they have been, by and large."
Gardai were also keeping track on two major Dublin criminals who travelled to Poland in a campervan to follow the Boys in Green.
The deadly duo, from Finglas, are key members of a criminal gang -- considered one of the most dangerous in the State -- which is suspected of being involved in three gun murders.
These include the savage murders of criminal brothers Alan and Graham McNally.
The Green Army has been extremely well behaved at the tournament, with Polish police having to arrest just 15 Irish people during the Euros so far.
At least 10 more were thrown in the 'drunk tank' for a night where they were fined €250.
The most serious allegation involved three Irish men who were accused of sexual assault at one of the Poznan campsites.
However, police who questioned the men for around four hours yesterday decided to allow them out of custody to attend last night's game.
The Deputy Mayor of Poznan Thomas Kayser said: "Officially we like all fans but I must say that Irish fans have a very special place in Poznan."