Serial sex attacker Kirk Reid escaped the authorities for 23 years, during which time police believe he was responsible for at least 71 offences.
In March 2009, he was convicted of 28 sexual assaults after a nine-week trial.
On Monday, police watchdog the Independent Police Complaints Commission (IPCC) said there was a "sustained failure" in the Metropolitan Police's inquiry.
Three senior officers now face misconduct proceedings over the errors.
Here are the cases police investigated which they believed could have been linked to Reid.
Reid is accused of raping a 17-year-old girl near his home in Battersea. The girl did not report the attack until Reid's 2009 trial began.
He was never charged with that offence but the girl's evidence was used during the trial.
Reid is accused of raping a woman in Balham in the summer of 1995. He admitted having sex but claimed it was consensual. The attack was not reported until his arrest in 2008.
During the same year, Reid is acquitted at Middlesex Crown Court of indecent assault after a woman claimed he attacked her in a central London alleyway.
August - Two women are indecently assaulted in Battersea. Reid admits to one of the attacks in December 2008.
September - A woman is indecently assaulted in Tooting.
October - A woman is indecently assaulted in Tooting.
November - A woman is indecently assaulted in Battersea.
December - Reid gropes a woman in Tooting. He admits the attack in December 2008.
January - Two women are indecently assaulted in Balham.
March - A woman is indecently assaulted and raped in Tooting. DNA, which experts said matched Reid's profile, is found on her skirt.
May - Two women are indecently assaulted in Tooting.
June - A woman is indecently assaulted in Balham.
July - Another woman is indecently assaulted in Balham.
September - Police intelligence officers identify a possible link in a series of 26 sex offences in Wandsworth over the previous two years. Another woman is indecently assaulted in Tooting.
November - Offences from December 2001 and March 2002 are linked by forensic tests. The third DNA offence, in August 2001, is linked in 2006 following a review.
December - Reid is stopped by police in Balham over reports that he was following a woman. An intelligence report is submitted.
August - Two women are indecently assaulted, one in Balham and one in Tooting.
January - A caller to 999 reports that a woman has been assaulted and the caller mentions a red Golf, but no location. The car is owned by Reid but police fail to follow up. The attack is later traced to Soho Square but the victim never came forward.
February - Reid is stopped by a police patrol who are on the lookout for the sex attacker when Reid toots his horn at a woman. He is not arrested but the officers log the incident. In the same month, Reid is formally identified by investigators as a "person of interest", alongside several other men.
April - A woman is indecently assaulted in Battersea.
July - A woman is assaulted in Clapham. Police record her evidence on video.
October - A woman is sexually assaulted in Balham. The attack is interrupted by a couple walking past. One of them later identify Reid in a police identity parade.
March - A woman is sexually assaulted in Tooting.
July - A woman is assaulted in Battersea.
October - A woman is sexually assaulted in Balham.
February - A woman is sexually assaulted in Brixton Hill. She picked Reid out of an identity parade in 2008.
August - A woman is sexually assaulted in Brixton.
September - A woman is assaulted in Balham. CCTV cameras capture a red VW Golf, similar to Reid's, circling her.
October - A woman is sexually assaulted in Tooting.
January - Reid is named as a suspect within hours of the Met's homicide and serious crime unit taking over the investigation. A DNA test links him to several attacks and he is arrested within five days. Reid later provides a voluntary DNA sample.
February - Reid is arrested after tests link his DNA to three offences and later charged with those attacks. He allegedly confesses to the crimes in a cell conversation with his police officer brother ahead of his first court appearance.
December - Reid pleads guilty to indecently assaulting two women.
March - Reid is convicted of 28 offences after a nine-week trial. The IPCC launches an inquiry into the police investigation.
June - Reid is jailed for life and ordered to serve a minimum of seven-and-a-half years.