THE second episode of ITV drama A Confession ended with Det Supt Steve Fulcher making the decision to breach police procedure that would later cost him his career.

Mr Fulcher, played by Martin Freeman, took killer Christopher Halliwell to Barbury Castle for an urgent interview instead of cautioning him and reminding him of his right to remain silent.

He asked Halliwell point-blank about missing Swindon 22-year-old Sian O’Callaghan: “Are you going to tell me where she is?”.

READ MORE: What happened during A Confession episode two

Before that, viewers across the country saw how the taxi driver first came under police suspicion, along with emotional scenes set nine years earlier which showed his first murder victim, Becky Godden-Edwards, in the throes of drug addiction.

We asked what you thought of the episode on Facebook and here's what you told us:

Jacqui Crovella: Aside from the accents, where its filmed and possible changes to the story for TV viewing, it's sending a clear message out. Trust no one and never go home alone. I worry for my child who is now a teen, a few years off clubbing but, if Sian's story helps her to understand that even someone you know could be dangerous, then it's done its job. Really feel for her family and friends re-living it but believe Sian's memory will live on always.

Colin Crowther: There's a huge London influence on big parts of Swindon and its accent, the subtleties of which haven't been picked up in this drama. Having said that, it is very good. Yes we all know that it definitely wasn't Asda Walmart Swindon that they filmed in front of. Still good though.

Lainey Mills: Just can’t help thinking of the anguish of the parents and loved ones. It’s TV, there will be some creative licence so the differences in the places and accents etc really are not important, the basis of what happened is important, it’s every parents nightmare,

Richard Long: It was too raw to the family to be filmed in Swindon. Some things don't need to be exact to tell a story and it is filmed with respect. I will always be remember the hundreds of sky lanterns that were launched to guide her home but they didn't show that either, probably because it was such a powerful moment.

Lee Collie: I'm not interested in viewing these sorts of programs. Since when has murder become entertainment and drama - I say that loosely going by the over-acting by so called actors.

Neil Michael Robinson: Harrowing and still fresh for many.

Claire Snell: If BBC had done this as a documentary it would have been excellent, the accents are more like Bristolians. If this is a documentary then so many facts are not being portrayed correctly. Feel for the families who lost their loved ones, as I’m sure it’s not nice for them to watch either.

Jake Brookman: I'm finding it interesting, apart from the work of the researcher who decided our accents are like that.

Melly Solly: Sack the cameraman.

Monica Moreton: My thoughts are for the families but I for one think it was harsh to sack the very man who got closure over another one.

Kayleigh L Mcgoban: I'm a Swindonian through and through and lived in Bristol for two years. The difference in accents is huge. I get called posh, which is hilarious. Only 45 minutes apart but such differences.

Norman Cox: Very slow-moving. Could be a good one-off docudrama, but a six-parter?

Phil Halsall: The script is a joke. Since when is Swindon a city? And Uffington is most definitely not on the route from Swindon to Barbury Castle.