Police have warned that malicious reports of false rapes will not be tolerated after a woman was jailed for 15 months after lying to detectives.
Cheryl Moss, 26, falsely claimed that a 19-year-old man had raped her in an alleyway near St Peter's Road, Bournemouth, in November 2009.
Moss pleaded guilty to perverting the course of justice and was sentenced last week at Bournemouth Crown Court.
Dorset Police said the investigation used valuable time and resources.
Despite being shown CCTV footage of the man the mother of four had been with all night and that sex had been consensual, Moss maintained her allegations were true.
Det Insp Steve Thorpe said: "Whenever Dorset Police investigates any report of rape, the victim's care is of paramount importance.
"We work tirelessly to thoroughly investigate such reports and we are determined to bring offenders to justice.
"Equally, we also take false accusations very seriously and Cheryl Moss has suffered the consequences of her malicious report.
"Her actions not only caused detectives to spend valuable time and resources investigating this incident, but, more importantly, caused entirely unnecessary distress to the man she accused."
Senior crown prosecutor Julia Woodward said the case was rare and should not deter victims from coming forward.
"This case went to court because Cheryl Moss continued with her claim despite the incontrovertible evidence that proved she had not been raped," she added.
"We fully concur with the comments made by the judge regarding the damaging effect that cases such as this can have."