A Chinese student who was convicted of drugging and raping 10 women in London and in his home country was set to be sentenced on Thursday in a case that a senior police officer said had uncovered “one of the most prolific predators we’ve ever encountered.”

The student, Zou Zhenhao, 28, was convicted of attacks committed in Britain and China from September 2019 to May 2023, but investigators said they had identified 50 further potential victims in videos he recorded using cameras inside his homes.

Originally from Dongguan, in the Guangdong Province of southeastern China, Mr. Zou was studying mechanical engineering at University College London at the time of the rapes. He targeted women he met through the student community, as well as by using social media and dating websites.

The senior police officer who oversaw the investigation, Kevin Southworth, a commander in the Metropolitan Police in London, said that because Mr. Zou had incapacitated women with a cocktail of drugs that also affected memory, some other victims may have “no idea what’s happened to them.”

“The sad fact of it is that there may well be some women on those videos who we may never identify, either because the images are too poor or we just can’t find them wherever they are in the world,” he said in an interview with The New York Times this week.