Second wave of early prison releases under way in England and Wales

A serving probation officer tell us about the pressures on the service, and we're joined by the Chief Inspector of Probation. Also on the programme, we bring you a briefing as the Director General of MI5, Sir Ken McCallum, warns about the prospect of AI Bio-weapons. And, as the ‘Big five’ fish species push old favourites off the menu, a Michelin-starred seafood chef, Tom Brown, tell us how to cast our culinary net wider.