Séamus McElwaine judge describing him as a "dangerous killer" and recommending he spend at least 30 years in prison. On 25 September 1983, McElwaine was involved in the Maze Prison escape, the largest break-out of prisoners in Europe since World War II and in British prison history. 38 republican prisoners, armed with 6 handguns, hijacked a prison meals lorry and smashed their way out of the Maze prison. After the escape he joined an IRA Active Service Unit operating in the area of the border between Counties Monaghan and Fermanagh. The unit targeted police and military patrols with gun and bomb attacks,
Maze Prison escape a soldier in a watch tower, and the other prisoner was captured after falling. The other prisoners escaped over the fence, and by 4:18 pm the main gate was closed and the prison secured, after 35 prisoners had breached the prison perimeter. The escape was the biggest in both British and Irish history, and the biggest in Europe since World War II. Outside the prison the IRA had planned a logistical support operation involving 100 armed members, but due to a miscalculation of five minutes the prisoners found no transport waiting for them and were forced to flee across fields