Kids at a primary school in Wales may be electronically tagged to check where they are in a new scheme.
Pupils at Lonlas Primary in South Wales could wear tags that would set off a buzzer if they left the grounds.
Their school is worried about keeping kids safe in break times, and so they are looking into the system.
Sara Reid, the Deputy Children's Commissioner for Wales, said she was concerned about the plans because they might go against children's rights.
Head teacher at Ysgol Gynradd Gymraeg Lonlas, Dyfrig Ellis, said he knew the plans looked extreme, but he had to look into them to protect the kids.
Robat Powell, from the school's governing body, said: "All that has been agreed is that we will meet the company and the local education authority to discuss a possible pilot in the school. We would evaluate it.
"We are concerned not to add to the teachers' workload and we would have to find out the exact details of the plan."
The government say they don't know if there has been a scheme like this before.
A spokeswoman said they weren't likely to interfere: "It is about local solutions for local problems."