What is legality of children conceived posthumously?

LAST month, world news outlets carried the story of Pei Xia Chen, the widow of murdered New York policeman, Detective Wenjian Liu. Pei Xia gave birth to their daughter two and a half years after her husband’s death. The night of the murder, December 20, 2014, on the advice of medical practitioners, Detective Liu’s wife requested that his sperm be preserved. The couple had only been married for three months.
The night of the murder, December 20, 2014, on the advice of medical practitioners, Detective Liu’s wife requested that his sperm be preserved. The couple had only been married for three months.