Maze Prison escape the prison walls using knotted sheets. A guard was shot and wounded during the escape, and the prisoners were captured after being chased across fields by guards and the police. In March 1997 a tunnel was discovered in H7 at the Maze Prison. The tunnel was fitted with electric lights, and was from the outside wall, having already breached the block's perimeter wall. On 10 December 1997 IRA prisoner Liam Averill, serving a life sentence after being convicted of the murder of two Protestants, escaped from the Maze dressed as a woman. Averill mingled with a group of prisoners' families
Portlaoise Prison walls, cameras, sensors and acres of tank traps (Czech hedgehog). The prison has a capacity for 399 prisoners, but because of the security sensitive nature of its inmates, it operates below this capacity and its daily average number of resident inmates was only 119 in 2009. There have been various high-profile attempts to spring prisoners from inside the walls. In 1902, the infamous criminal James Lynchehaun, who was in prison for the attempted murder of Agnes McDonnell, escaped unaided over the walls and made his way to America. The method of escape is well documented in the book, "The Playboy