Criminal investigation...................
This reads like these referrals are for administrative investigations that might lead to disciplinary actions, not criminal referrals.
No point in investigating.
May as well write the exoneration letter before investigating, if there must be an investigation.
", five employees have been referred for investigation into whether the messages violated FBI code. The FBI will handle these referrals pursuant to the FBIs disciplinary investigation and adjudication processes, and will impose disciplinary measures as warranted, the report read."
They broke FBI "codes". In other words, workplace "rules" is the spin. They might be reprimanded or worst case, fired. But nobody is going to jail over this.