Those with law enforcement contacts...friends, family, etc, and those who watched 'cops' tv shows frequently, will understand instantly, what I'm about to say.
These 'people', like the DU poster than prompted this thread, are another form of the abused wife that calls law enforcement on her abuser husband, then defends the abuser husband to the point of violence, when law enforcement shows up to arrest the abuser.
I can not, beyond observing it and describing it, understand it. But there it is.