Parents in England who regularly look after friends' children and receive a "reward" for doing so must register as childminders, regulator Ofsted says.
It said most parents would be exempted but those who babysit for more than two hours at a time, or more than 14 days per year, should be registered.
The "reward" could be money or free baby-sitting in return, it said.
It comes after Ofsted told two police women to end an arrangement to care for each other's children. read more
