The AI Now Institute says the field is "built on markedly shaky foundations".Despite this, systems are on sale to help vet job seekers, test criminal suspects for signs of deception, and set insurance prices.It wants such software to be banned from use in important decisions that affect people's lives and/or determine their access to opportunities.The US-based body has found support in the UK from the founder of a company developing its own emotional-response technologies - but it cautioned that any restrictions would need to be nuanced enough not to hamper all work being done in the area.