The stars of the BBC One detective drama New Tricks have said there is room for improvement with the show's scripts.

Speaking to the Radio Times, Amanda Redman, who plays Sandra Pullman, said: "It's more bland now. The characters are not being as anarchic as they used to be, which I think is a huge shame."

Her co-star, Alun Armstrong, said his character Brian Lane had become "saner", something he was "not too enamoured with".

He joked: "It's about time Amanda's character got her leg over," and added: "I don't know. Maybe the writers have become more concerned with the investigation."

Giving his assessment, Denis Waterman, who plays Gerry Standing, said: "I don't think it has become just another police procedural, but there was a danger.

"It's partly because of dealing with cold cases. We're always talking about history and some writers - not all of them - can go on and on about that, repeating themselves.

"You have to remind yourself that people aren't as stupid as writers think. But that's the way things are going in the industry."

Referring to the success of Danish police dramas like The Killing and Borgen, Waterman said: "Basically, we all want to move to Copenhagen to get to do some really extraordinary television."

The actors have recently completed filming on the ninth season of the show.