Meet China’s ‘Mistress Killer’ who’s making a fortune battering cheating husbands’ lovers in the street

A CHINESE woman who says she is determined to "exterminate" cheating husbands punishes their mistresses by battering them in the street.

Zhang Yufen, 58, is known as the "Mistress Killer" for her unusual hobby, which involves spying on her clients' partners before confronting their lovers in public with vicious and humiliating attacks.

She set up her agency, the Alliance Against Mistresses, in 2003 after her own husband admitted to having to having an affair in the 90s and left her and her son for his lover, clearing their joint bank account after 16 years of marriage.

She followed him for five years to discover that his lover was actually her best friend, and finally won a divorce and payout in 2007 after she failed to sue him for bigamy.

Now she helps other women who know they are being cheated on get revenge, stalking their unfaithful husbands and humiliating their mistresses - as well as helping them gather evidence to prove the affair so their husbands forced to pay compensation.

In China there are no laws against adultery, with spouses only punishable if they are found guilty of getting married twice.

She receives around 100 calls a week in her mission to "ruthlessly exterminate those men" - and says police turn a blind eye to her assaulting other women in public.

She told : "We beat the woman into the middle of the street, causing a traffic jam. There were lots of people standing there, watching us beat the woman.

"The police officer told me that he 'didn't see what's happening.' When I heard this, I knew it's OK. So I kept beating the mistress."

One of her greatest achievements was when she was approached by the wife of a senior official in 2009 - who had 17 lovers.

The woman's husband worked in railway contracts and travelled across the country - and Zhang found out the he was having an affair with a local TV presenter.

She told his wife where to go to find him - and when she did, she caught him in bed with his lover, and used his phone to find out that he had been seeing 17 different women in different cities where he worked.

But Zhang doesn't just deal with scorned wives - she also aims to expose corruption, discovering that women were being short-changed by the court system, who are sympathetic towards to cheating husbands.

In 2012 research found that 95 per cent of officials under investigation were cheating on their husbands - and it's common for them to have multiple mistresses who are lavished with gifts and houses.