I mean, is giving the money to the cops in a report, or even giving the money back, much safer? If they’re offering bribe money, they clearly value your cooperation more than the money and so might not be willing to take no for an answer if you try to refuse or give it back in person. I guess with the reporting option, there’s at least the fact that if something happens to you, it’s going to look far more suspicious than if you were just someone the media and law enforcement had never heard of, so whoever gave the bribe risks even worse crimes potentially being tied to them with the murder.