The investigation into Sports Direct has widened to include all of the company’s 13,000 retail workers, according to reports.

Last month, the group’s founder Mike Ashley admitted to a Parliamentary inquiry that workers at its Derbyshire warehouse were paid below the minimum wage and that the company had been fining employees for being late.

This week, the Guardian newspaper reported that HM Revenue & Customs (HMRC) was now looking into whether employees in the company’s retail stores across the country were also paid less than the minimum.

The company has now come under yet more pressure, with a report from the Business, Innovation and Skills committee revealing some “disturbing” working practices. These include a ‘six strikes and you’re out’ policy – strikes being given for long toilet breaks or chatting amidst other allegations.