All they need is a statement. Once they have that, they leave it up to the court to decide. Because of the seriousness of the charge there is no way they wouldn’t charge him and there is no way they would drop the charge. Just because someone gets charged doesn’t alway mean there is a lot of evidence, sometime the police charge the person to cover their own ass. If they had a heap of souls evidence there is no way he would of got bail, he would be in jail now waiting for his court date.Yes, don't be accused of fucking up to the extent that both the police and the prosecutors deem there is enough evidence to spend resources of a cluttered court system in an attempt to bring you to justice.