Tools used widely to inform decisions on everything from housing to school places despite concerns over accuracy
Nearly half of councils in England, Wales and Scotland have used or are using computer algorithms to help make decisions about benefit claims, who gets social housing and other issues, despite concerns about their reliability.
A Guardian freedom of information investigation has established that 100 out of 229 councils have used or are using automated decision-making programmes, many without without consulting at all with the public on their use.