Generally, the 'swatter' calling it in claims the target is a violent criminal with hostages as to prompt an aggravated response by SWAT leading to the highest possibility of law enforcement using deadly force against the target before being able to assess the reality of the situation. You cant become immune to this attack because if SWAT stopped responding to your location and later crimes were found to be committed law enforcement would take a hit. Whereas if they kill an innocent due to bad intel that's just part of the job