A POLICE officer arrested on suspicion of conspiracy to pervert the course of justice after his son was jailed for sex offences will not be facing any criminal charges.

Chief Inspector Mick Williams was suspended from his post at Cleveland Police following his arrest last year.

News of the 48-year-old's suspension emerged after his son, Darryl Williams, pleaded guilty to six offences against five girls aged 12 and 15 between September 2009 and November 2012.

The senior officer is still subject to an internal disciplinary hearing that is being carried out by the force into the actions that led to his arrest.

His 19-year-old son, of Windsor Road, Redcar, wept in the dock at Newcastle Crown Court as he was sentenced to two years and nine months in jail in April.

The charges included three counts of sexual activity with a child, two counts of engaging in sexual activity in the presence of a child and one count of sexual assault. Judge John Milford QC said Williams would spend half of his sentence in a young offenders' institute and the rest on licence.

He will be subject to a sex offenders' prevention order for five years.

The judge said Williams had been ''predatory and manipulative'' and '' exploited young and impressionable females''.

The court heard Williams had returned from working abroad in Turkey to face the charges against him.

Nigel Soppitt, mitigating, said: "He has been immature and he has been reckless.

"He accepts that what he did was wholly unacceptable and inappropriate."

The arrest of his police officer father was referred to the Independent Police Complaints Commission, who then referred the matter back to Cleveland Police for a local investigation to be carried out.

A Cleveland Police spokeswoman said: “A file was passed to the CPS who have advised no further action in terms of the conspiracy to pervert the course of justice.

“A Cleveland Police officer now faces an internal disciplinary investigation.”

She confirmed the 48-year-old remains suspended from duty.

A 42-year-old man, and a 45-year-old woman were also arrested in November from the Redcar area. Police confirmed the CPS will take no further action against them.