In China, it is illegal and has been illegal to surrender an infant UNLESS the married man was widowed and couldn’t take care of the child. The baby girls (mostly) are secretively placed in boxes where they could be found... busy markets, outside businesses, schools, etc.. The parents (many times) will hide.. a distance away to see the infant is found.
Absolutely correct.
Their method is more informal. The police know to check certain places when making their rounds.
The upside for adopting parents is all birth parent rights are terminated two weeks after the child’s recovery. They can lay no claim to the child without facing prosecution by the Chinese government.