So a journalist raises a 'query'? Is that giving or sharing information then, or asking for information?
It's asking for an 'on the record' statement; an official, publishable response to an allegation/incident/situation.
It may also include some evidence, such as messages, emails, pictures etc to verify the legitimacy of the claim.
The press query then raised the allegation of inappropriate communications? Did they report that to the police (the journalist)?
Journalists - or anyone else for that matter - generally have no legal obligation to report criminality, or allegations of criminality, to the police.
Same goes for employers, with exceptions for things like terrorism, money laundering, or child safety where not reporting is an offense in itself.
Obviously there is a moral obligation on all of us to report proven or credible suspicion of criminality.
Journalists have to weigh this against their obligation to protect the identity and safety of their sources.
I do find it odd this emphasis on the employer being an 'investigator'. Its not the same as this being a teacher or carer? Surely if any employer receives information of a criminal nature they should be reporting this to the police or informing the complainent (journalist in this case) to report to the police?
With this case specifically, there is no suggestion that the 'inappropriate communications' were criminal in nature. They weren't followed up due to the lack of information in the query, so we don't know that the BBC was even aware of their contents or nature.