Most workers believe they are being monitored by their boss, a new study reveals.

Two out of three people surveyed by the TUC said the trend for increasing surveillance methods fuels distrust and discrimination and could be used to set unfair targets.

Monitoring includes checking internet use, recording time away from work duties and even the use of facial recognition software to assess workers moods, the poll of 2,10 adults found.

Meanwhile a third of those surveyed believe their social media activity is being 'snooped on' when they are not at work.

Most workers believe employers should be legally required to consult staff before using surveillance.

TUC general secretary Frances O'Grady said: 'Employers must not use tech to control and micromanage their staff.

'Monitoring toilet breaks, tracking every movement and snooping on staff outside of working hours creates fear and distrust, and it undermines morale.

'New technologies should not be used to whittle away our right to privacy, even when we're at work. Employers should discuss and agree workplace monitoring policies with their workforces – not impose them upon them.

'Unions can negotiate agreements that safeguard workers' privacy while still making sure the job gets done, but the law needs to change too, so that workers are better protected against excessive and intrusive surveillance.'

The TUC highlighted the example of in-cab cameras constantly watching lorry drivers, even if they have a break.