Micko, I'm not sure if it's the same in Ireland, but here in America, you can tell your city hall authorities on them. :3 I visit my city hall website for my county regularly... I have awful neighbors too. Their kids love screaming profanities at me even though I didn't provoke them at all. and their father says "Well I don't think they're doing anything wrong, they're not hurting anyone." Ugh. No reasoning with idiots.
They also blast music from their cars, causing one of my good neighbor's kid to cry. They scream threats at me repeatedly for trimming plants on MY SIDE of the fence. What's wrong with them... they must have aspergers or something.
Well anyway not sure if this works in Ireland but you can have your neighborhood petition to evict the neighbors out. They each must give a detailed description of why the neighbor is disruptive.
Also it would be best to have video proof. You should record them in the act, then record the time and date in the camera recording. Since times and dates can be faked in some cameras, you should record a clock that you don't have control over, such as maybe a giant public clock outside a store. Or a policeman's/higher authority member's watch.