It was Haggart's fate to commit only one more robbery, which was at a fair near Downpatrick, for which he was instantly apprehended and committed to the county jail to await his trial at the next assizes. The society and practices of this place it appears were horrible beyond description. Having received their supply of provisions for three days, the male prisoners blocked out the jailors, by digging up the stones of the floor, and placing them against the door, and then they broke their way to the wretched women in confinement, with whom they remained two days, giving way to every kind of wickedness. After spending this time in the most riotous manner, they were secured. Haggart was locked up closely in his cell, and kept in confinement till the day of trial. On the 29th March he was arraigned, and after a trial, in which it is evident that he was mistaken by the learned judge for some other person, and in which the judge himself offered to give evidence, that he had been before convicted before him; he was found guilty and sentenced to seven years' transportation. On his being carried back to the jail, he was recognised to be the man who had escaped from Belfast, and removed to Kilmainham jail, and there loaded with fetters. He soon thought of making his escape by digging through the back wall, with the assistance of several others, having first secured the entrance of their apartment; but some of the prisoners gave information, and Haggart being the first man who made his appearance through the hole, he got a severe blow; the others rushed after him, but having still a high wall to get over, they were all secured by a party of soldiers, and locked up in their cells. He was subsequently guilty of some other misconduct in being insolent, and otherwise infringing upon the rules of the prison, in consequence of which he was handcuffed, and confined with a horrible iron instrument fitted on his head, from the front bar of which an iron tongue entered his mouth and prevented his speaking. This, which was certainly an arbitrary and cruel exercise of power, excited only opposition, and the moment it was removed, the prisoner took his seat on the window of his cell, and remained there during the rest of the day, singing the most profane songs he could think of. Even the fear of the iron helmet of Kilmainham could not keep him quiet.