The High Court has reserved judgment in the case of seven water charge protesters facing jail or a fine if found to be found in contempt of court regarding the obstruction of water meter installation.
The court heard that the seven were subject to previous orders of the court.
One order set up a 20-metre exclusion zone around installation works and another one prevented the interference with vehicles entering and exiting sites where water meters were being installed.
Six of the accused were in court: Damien O'Neill of Greenwood Park in Coolock; Paul Moore of Mount Olive Grove in Kilbarrack; Bernie Hughes of McKelvey Avenue, Finglas; Mark Egan of Tonlegee Drive, Raheny; Richard Larkin of Mount Olive Road, Kilbarrack; and Derek Byrne of Streamville Road, Donaghmede.
The court was told Michael Batty of Edenmore Avenue, Raheny, needed to be in a dry and sunny climate due to chronic asthma.
Counsel for GMC Sierra Jim O'Callaghan showed footage to the court, which he said showed a number of the accused within the exclusion zone and interfering with work at a number of locations in the Arbour Hill, Phibsboro and Stoneybatter areas of Dublin 7 on 8 and 9 December 2014.
The footage showed a person removing plastic barriers, a person backfilling an excavation, a person standing in front of a vehicle and a number of people standing around barriers where water meter installation work was being carried out.
There was also evidence from employees of the First Pulse security firm who claimed to witness separate incidents of people shoving water meter installers, kicking a worker in the head and another worker being punched in the torso.
Written accounts from the firm also claimed that people were seen stamping on pipes and banging on vehicles.
The court heard that Operations Manager of GMC Sierra Neil Corrigan downloaded pictures and a video from the Edenmore Says No Facebook page from the week commencing 9 December 2014 that he claimed showed some of the defendants breaching the court order.
The video, which was played in court, showed people backfilling holes that had been excavated by the company.
A still image from the same Facebook page showed a number of people standing in water meter work stations with the caption "Blitzing of Stoneybatter".
Other images showed a person grabbing a shovel from a worker, people blocking a van and a person placing their foot where concrete was about to be cut.
In his closing arguments Mr O'Callaghan for GMC Sierra said the facts of the case were not in dispute and that counsel for the seven people had not denied the charges on their behalf.
He said that workers for GMC had been blocked from doing a day's work which was every person's constitutional right.
He said while the seven had a right to protest they had no reason to target the workers.
And he said the company had an obligation to protect its employees from harassment and intimidation.
Counsel for the seven Patrick McGrath said the evidence presented to the court was insufficient.
He said the fact that many of the witnesses were only able to identify the seven as a result of someone else pointing out who they were was a matter that should trouble the court.
Judge Patrick Gilligan reserved his judgment in the case until 11am Thursday.
