The chair of Cleveland Police Authority says Sean Price let himself down.
Stuart Drummond told a press conference that the public needs to have complete trust in the police service at every level.
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Emergency services were rushed to the property on Belle Grove West, Newcastle at 12.27am on Monday and put out the flames.
The couple held hands throughout the hearing, pleading not guilty to all charges in connection with the death of Jackson Curtis Howell.
The 57-year-old, from Redcar, was arrested on Monday morning on suspicion of two counts of sexual assault. He remains in police custody.