From NBC News:
But some experts, like Wang Feng, a professor of social science at University of California, Irvine, have questioned how the new policy would even be implemented. “Logistically, it is going to be very difficult,” said Wang. “Nowadays, people are mobilized. It’s hard to verify who is an only child.” He was referring to the government’s record keeping being fragmented across hundreds of local governments – with no central database where information can be cross-checked.

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