Full report: Wells-Burr murder - the forensics behind the conviction

It was a huge police effort to convict the three - with more than a thousand statements taken and more than three hundred vehicles traced which had passed the layby on the A358 where Catherine's body was found.

Forensic investigations played a key part in their conviction.

Ian Axton reports:

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Wells-Burr murder sentences could be shortened

Three people jailed for life for the murder of Catherine Wells-Burr from Somerset could see their sentences reduced.