A recent study has claimed to have uncovered disturbing evidence of female workers around the UK having to submit to “sexist” dress codes.

A report prepared by MPs suggests that many women have been told to dye their hair blonde, wear shorter skirts and touch up their make-up by bosses.

The issue was thrown into sharp relief by a now infamous incident in 2015, when receptionist Nicola Thorp was sent home because she wasn’t wearing high heels.

MPs have said that while dress codes which discriminate on the basis of gender should be illegal under the Equality Act 2010, the legislation has not been properly enforced.

Helen Jones MP, chair of the Petitions Committee, said: “The way that Nicola Thorp was treated by her employer is against the law, but that didn’t stop her being sent home from work without pay.

“It’s clear from the stories we’ve heard from members of the public that Nicola’s story is far from unique.”

Ms Thorp, who started a petition which attracted more than 150,000 signatures, said she would support a fairer system.

“This may have started over a pair of high heels, but what it has revealed about discrimination in the UK workplace is vital, as demonstrated by the hundreds of women who came forward via the committee’s online forum,” said the 28-year-old.

“The current system favours the employer, and is failing employees.”

The MPs said that a publicity campaign – making businesses aware of their obligations – could be beneficial. They also support Employment Tribunals being given the power to hand out larger penalties to those firms found to be discriminating against staff.

If you are an employee who believes they have been the victim of discrimination in the workplace, please contact Hethertons’ head of employment Jo Yeates.