Mr Smith said he fears the leading online fashion retailer ‘is the new Sports Direct’, in reference to that company’s recent scandal over poor working practices.
The GMB union claims ASOS staff have reported facing invasive surveillance, random searches and limited toilet breaks at the company’s distribution centre near Barnsley, run by XPO Logistics.
He said: “These practices have no place whatsoever in any workforce and they need rooting out.”
An ASOS spokesman said: “We work incredibly hard with XPO to create a positive, supportive, healthy working environment. We don’t do zero hours contracts, people can take toilet and water breaks whenever they want, and we pay above minimum wage.”