James Bolam (Jack) and Susan Jameson (Esther) are married in real life.

The opening song "It's Alright" is sung by cast member Dennis Waterman.

The theme song for the first 3 episodes of series 1 is performed by Dennis Waterman (Jerry Standing). The song "End of the Line" is originally by the Traveling Wilburys.

Brian Lane was voted "One of TV's greatest loonies".

A ten-part series was filmed between November and June, with the production schedule rested over Christmas. A block of two episodes were filmed together and blocks were separated by a week in which the actors attended a script read-through for the next block of two episodes.

Creator Roy Mitchell, a lifelong fan of West Bromwich Albion football club, gave the lead characters the surnames Halford, Lane and Standing. "Halfords Lane Standing" was once printed on tickets to football matches for West Bromwich Albion for spectators in the Halfords Lane Stand (before seated stadiums).

Tamzin Outhwaite, who plays DCI Sasha Miller from series 10 onward, played the character Victoria Kemp, the victim's mother, in an episode of the series two years earlier.

Alun Armstrong admitted in an interview that he was pleased his character Brian Lane wasn't bumped off.

Series 8, episode 7 was viewed by 9.27 million people. It was the most popular episode to date.

Series 1 and 2 did not originally carry any titles; however, for digital repeats and the DVD release were given titles for clarification.

The red bicycle driven and stored behind his desk by Alun Armstrong's character is a Coventry Eagle.

Brian Lane (Alun Armstrong) is mentally unstable and suffers from OCD (Obsessive-compulsive disorder).

Amanda Redman's former At Home With The Braithwaites (2000) co-stars Peter Davison and Sarah Smart were guest stars in the series. Davison played Charles Allenforth in New Tricks: End of the Line (2011) and Smart played Catherine Green in New Tricks: Body of Evidence (2012).

George Cole, who played Sir Edward Chambers in New Tricks: Powerhouse (2007), had starred opposite Dennis Waterman (Gerry Standing) in Minder (1979).

Jack Halford is also the name of a character in the novel "The Tenant of Wildfell Hall" by Anne Bronte

Alun Armstong admitted in an interview he was glad Brian Lane wasn't killed off. New Tricks: The Little Brother (2013) (TV Episode) could had ended with the character committing suicide following his dismissal from UCOS after giving Sarah Kaye a tape concerning the death of her son.