A fingerprint scanning system is being introduced at a nursery in Bath to allow only parents and staff access.
The nursery said the measures enhanced security
The biometric controls are being introduced at the First Steps nursery to "enhance existing security arrangements".
The company behind the system, UK Biometrics, said no fingerprints were actually stored and no human rights were infringed.
Manager Lysha Goode said: "Security is a prime concern for parents and staff."
"With our new biometric system we know only registered people can gain access to the nursery so parents have peace of mind," she said.
Sally Glover, of UK Biometrics, added: "The nursery has specified the only key which cannot be lost, stolen, forged or hacked - the human fingerprint.
"The system is ideal for high traffic sites where security is paramount."