Since arriving on our screens in 1984, Crimewatch has prided itself on being one of the original interactive programmes, and interactivity with the audience remains at the core of the programme today.

As assistant content producer Steven Green explains, viewers have always been able to get in touch with the team of detectives working on the live shows, but new technologies and social media channels mean there are now many more ways to get in touch with the team and stay informed, with the website at the centre of them all.

"You still have the studio full of police officers taking a call, but with things changing and technology changing, we enhance that." – Steven Green

The main focus of Steven's job is to make sure that the site reflects the main elements of the programme including the reconstructions, wanted faces and CCTV footage. It's a big help for the presenters who refer to the site throughout the live shows, but for many users the site is their main access to appeals and police information so they need to be able to find what they need easily.

In addition, whereas most programmes will be available through online media players after transmission, legal restrictions mean that Crimewatch isn't repeated and is only up on iPlayer for 24 hours.

The rapid turnaround of information live on air means Steve needs to update the site quickly, so he uses content management systems like iBroadcast and iSite to get clips and information broadcast ready for the web and mobile.

Steven's also tasked with making sure that the shows and appeals are promoted through Twitter, giving viewers instant access to the site and to programme information as well as passing information to detectives working on live cases.

"When we’re on air and you see the e-mails coming in and Crimewatch trending on Twitter, it's like, this is real. It’s out there and people are responding and that’s great to see."