The incident took place outside a school in Dublin in 2022.
An Offaly man has been given a sentence of 16 months for his role as one of four men who violently confronted a juvenile in school, causing widespread fear among students and staff.
22-year-old Josh Neary, originally from Tullamore, but with an address of Shancastle Park, Clondalkin, Jack Craig, who's 21 with an address of Shancastle Drive, Clondalkin, and 25-year-old Scott Purdue of Shancastle Park, Clondalkin, pleaded guilty to violent disorder at a boy's school in Dublin on October 13th, 2022.
The fourth man is still before the courts.
CCTV footage showed the men entering the school and confronting a teenager, who took out a hammer from his bag and fled.
The fourth man took a steel pole and threw it at the student, narrowly missing.
Mr. Neary, then grabbed the student's own bag and threw it at him, before the confrontation was brought to an end by staff who ushered the men out of the school.
The court heard nobody was physically injured, but students were quite scared and one staff member retired as a result of the altercation.
Judge Martin Nolan said the men were 'very forceful, boisterous and very violent' and 'terrified students and staff' when they entered the school.
He handed down sentences of 16 months for all three men, but suspended the sentence in full in the case of Mr. Craig, whom the court heard has no previous convictions and did not play a big role in the incident.
The court heard Mr. Neary came to Dublin for work and fell in with a bad crowd, and has eight previous convictions.
He also had €500 in court for the school as a token of his remorse.
Mr. Purdue has 107 previous convictions, and is currently in custody - the court heard he suffered two head injuries in the past, one when he fell out of a moving car, and the second as a result of a gunshot wound which left him in a coma for five months.