The trial of four people arrested in connection with the murder of Becky Watts continues hearing evidence today. Nathan Matthews and Shauna Hoare deny kidnapping and murdering the teen. James Ireland and Donovan Demetrius deny assisting an offender.
Follow @ITVBeckyTrial for live updates from the court.
The family of Becky Watts held their head in their hands and looked visibly distressed as a witness show an identical circular saw - then switched it on.
Matthews sat with his head bowed as an expert in dismemberment told the court how the saw operated.
Sarah Hainsworth, professor of materials and forensic engineering at the University of Leicester, said it would have been easier to dismember a body if two people were involved.
A duplicate of the saw used to dismember the body - bought by a police man during the investigation - was shown to the jury and then plugged in so they could hear the level of noise it made.
Members of Becky's family remained ashen-faced, and her auntie Sarah Broom left the court, as the 1400 watt, Mac Allister saw was handled by the jury and as the witness went into detail about its use.
The creative industries across Bristol and Bath have received £46 million to create 'new experiences and boost productivity.'
A service in Plymouth run by the NSPCC, which helps prevents online child sexual abuse, is expanding.
Bristol Water is urging people to stay safe and not swim in the water at spots like Chew Valley or Cheddar Lake this weekend.