Five serving detectives are now facing Savile probe
Five serving detectives have been served with misconduct notices and two former officers are being investigated over how they handled allegations relating to Jimmy Savile, the Independent Police Complaints Commission (IPCC) said.
The watchdog said that inquiries are being made into how officers working for Sussex, North Yorkshire, West Yorkshire and Surrey police forces dealt with claims about Savile's predatory sexual behaviour.
Four serving detectives with Sussex Police are being investigated over their handling of a reported indecent assault carried out by Savile in 1970. A detective sergeant and detective constable, who visited the complainant after she contacted the force in March 2008, have been served with gross misconduct notices.
The other two officers, a detective chief inspector and detective inspector, who had supervisory roles, have received misconduct notices.
IPCC deputy chairwoman Sarah Green said: "The investigation is examining interactions between Sussex Police officers and the victim and whether all lines of inquiry were properly pursued."
A serving detective sergeant with North Yorkshire Police has also been served with a misconduct notice over how he handled information from a 15-year-old girl regarding Savile and his late associate Peter Jaconelli in January 2002.
How two revelations made by a serving prisoner about Jaconelli in December 2008 and January 2009 were treated is also being investigated.