They are facing three years and six months each in prison, fines and compensation for the officers.
The alleged attack, in which the officers were insulted and threatened, took place in April 2008, when they were in plain clothes at the disco, where there was no private security.
The version of events according to the prosecution starts at around when one of the officers was coming out of the toilets. He was hit from behind, and although he identified himself as a Guardia Civil, the attack continued.
The first attacker’s brother then also hit the officer from behind and allegedly said “I’m going to kill you Guardia Civil”.
The other two officers also identified themselves and told the attackers to stop, but one threw a glass at one of the Guardia Civil knocking out four teeth and causing other injuries and after effects.
The two men then continued to throw bottles and glasses at the three officers, and hit another client at the disco.
Other officers on duty were called to the disco and arrested the two men who also continued to attack, insult and threaten them.
By Jennifer Leighfield