FORENSICS teams have returned to Broad Street today, where convicted double murderer Christopher Halliwell lived between 1997 and 2001.

Investigations which seem to focus on rear yards of two Broad Street properties are expected to take a further four days.

Forensics have played a key role in bringing Halliwell to justice.

Following the disappearance of Sian O’Callaghan in 2011, officers carried out extensive searches in Savernake Forest, where officers spent days hunting for clues.

The search had centred on the forest after it was discovered her phone had received a message within a six-mile area of the forest, only 34 minutes after she was last seen leaving Swindon nightclub Suju alone in the early hours of the morning.

More than 400 people joined the hunt in the woods in the following days, before the search was moved to Old Town, where officers were seen looking in drains, bins, undergrowth and bushes.

The police teams searched the park at The Lawns and the bins and bushes around the Old Town Co-op car park, with the police helicopter hovering overhead.

Closing in on Halliwell, Police swooped and sealed off a house in Ashbury Avenue, Nythe when several officers guarded the cordoned-off house and driveway, upon which a white tent stood to shield crime scene investigators analysing the spot where his car would usually be parked.

Sian’s body was later discovered in a field in Uffington. 

Halliwell also led DS Steve Fulcher to another field in Eastleach where the remains of Becky Godden were discovered after forensics teams worked into the night to uncover the truth.