Companies should not use immature biometric technologies to analyse emotion, the Information Commissioner’s Office has warned.
The ICO is worried organisations are making critical decisions about people without appreciating there is no scientific evidence the tech works.
And it could cause “systemic bias, inaccuracy and even discrimination”.
Deputy commissioner Stephen Bonner told BBC News the worst tech was little better than a fortune-telling fish.
The movements of the translucent red plastic fish, often found inside Christmas crackers, when placed in the palm of the hand, supposedly predict the future.