“This is not unusual for high-profile cases. The police investigate the facts and give the results to the prosecutor to decide whether to bring charges,” he explained. “It’s also routine in cases like this where the crime was not committed in police officers’ presence.” If the OAG decides to proceed, a warrant for Mr. Gregory’s arrest will be sought.

Ms. Crump would not say whether the Sunday-show host was interviewed or a search warrant issued, as might be done in more ordinary circumstances.

Asked whether it was normal for the police not to interview a suspect as part of an investigation, Mr. Gardiner said it depends. “The police usually only interview people who are not sophisticated and wealthy, because the police figure they don’t have counsel and so don’t know that they can say, ‘no,’” he explained.