It was written by Dominick Behan, Brendan Behan's father.
Brendan Behan is a famous or infamous playwright and author. Much of his writing deals with his time in the IRA or his prison sentences when caught or with being Irish.
Borstal Boy and Confessions of an Irish Rebel are Brendan Behan's works I've read.
They deal with his arrest in England during WW2 when he was sent over as a minor to plant explosives somewhere and his subsequent adventures.