At an earlier hearing, Det Sgt Matt Swash, 41, who is based at March police station, admitted accessing unauthorised information about a colleague on a police computer system.
At Cambridge Crown Court, Swash was sentenced to two months in prison, suspended for 12 months.
He remains suspended pending internal police misconduct proceedings.
Cambridgeshire Police said Swash would face no further action over other charges, including 11 counts of sexual assault and two counts of misconduct in public office.
A Cambridgeshire police officer has been sentenced for an offence under the Computer Misuse Act.