TV Guide Sky Crime Monday

Father-and-son dog handlers John and Kevin Tozer join forces with their Alsatians Charlie and Floyd as the Metropolitan Police dog unit raids a suspected cannabis den. However, retirement beckons for John's canine companion, leaving 13-month-old Herbie as a possible replacement - if he can make it through basic training to join London's dog squad elite ranks. Narrated by Ken Stott

Documentary following the work of Ireland's border force officers as they fight to stop gangs of organised smugglers from bringing drugs, money, guns, cars and even exotic animals into the country

The story of Mitesh Patel from Middlesbrough, who presented himself as a mild-mannered family man. However, behind closed doors his wife Jessica paid the ultimate price for his violent outbursts

Documentary examining what turns someone into a killer, beginning with Kim Edwards and Lucas Markham, who became Britain's youngest double murderers in 2016 when they killed Kim's mother and sister in their beds - then sat downstairs watching movies