A REVIEW of the long-running police investigation into the disappearance of chef Claudia Lawrence led to an overhaul of administrative procedures.

The study by the National Policing Improvement Agency was their second examination of the inquiry and was commissioned by North Yorkshire Police.

The agency found the investigation had been conducted with integrity and objectivity and that, where individuals had been subject to investigation, no investigative opportunities had been overlooked.

It said good practice was evident throughout, but made a number of recommendations, most of which referred to administrative procedures.

In particular, they related to the management, processing and categorisation of the vast amount of information gathered during the investigation.

Assistant Chief Constable Tim Madgwick said yesterday each issue had since been addressed and none had affected the outcome of any lines of investigation.

He said: “North Yorkshire Police remain as committed as ever to solving Claudia’s disappearance and bringing closure for her family.”

Miss Lawrence, of Heworth, York was last seen in March last year and her disappearance sparked one of North Yorkshire’s biggest police operations in recent years.

Her parents were originally from Darlington and she was brought up in Malton, North Yorkshire, later moving to York, where she worked at the city’s university.

Within a month of her disappearance, police were treating the case as suspected murder.

However, the inquiry was scaled down in July, although a £10,000 Crimestoppers reward is still being offered for information.