Scientists are divided on how best to tackle the maverick element of fertility researchers or whether they even need to be tackled.
"The only way to rein them in is to have a body like the HFEA in different countries," said Serhal. "When you know there is someone breathing down your neck, you're going to think twice, if not more, before doing something stupid."
But there is no guarantee a global HFEA would be the answer. In the UK, some private clinics flout the fertility guidelines but do not seem to be penalized.
"They aren't even being threatened with having their licenses taken away," said Allan Templeton of the Royal College of Obstetricians and Gynecologists.