Former Portlaoise Prison governor says inmates were very creative at making weapons during his time.
294 weapons were seized in Irish jails last year.
According to freedom of information figures, 77 were taken from inmates in Wheatfield Prison - the highest in the country.
51 were seized in Limerick jail and 48 in Mountjoy.
Former Portlaoise Prison governor, John Lonergan, says inmates were very creative at making weapons during his time:
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