 Fegan starred as Inspector Jack Connolly, head of the squad – a seasoned policeman in the classic dry, gruff mould that remains popular in similar shows today.The name Connolly was selected to reflect the Irish influence in Australian police forces and no doubt it helped to account for Fegan's still strong Belfast accent.The show was so popular and considered so accurate (police procedure was followed faithfully and police advisors ensured that things were done correctly) that the actors were often confused for real police officers and, at one point, Fegan was invited to a policeman's ball.