“Mr. Reilly eventually compiled a database of 346 hate-crime allegations and determined that less than a third were genuine. Turning his attention to the hoaxes, he put together a data set of more than 400 confirmed cases of fake allegations that were reported to authorities between 2010 and 2017. He allows that the exact number of false reports is probably unknowable, but what can be said “with absolute confidence is that the actual number of hate crime hoaxes is indisputably large,” he writes. “We are not speaking here of just a few bad apples.”
https://www.wsj.com/articles/hate-crime-hoaxes-are-more-common-than-you-think-11561503352
https://www.wsj.com/articles/hate-crime-hoaxes-are-more-common-than-you-think-11561503352