No castle doctrine, or stand your ground law, Buuuut....(long)
Off and on for 30 years, I've had a permit to carry. Iowa has no "Castle Doctrine" law, per se... Nor does it have "Stand Your Ground" or "Make My Day" laws.
In every CWP class I've been in, both professional and personal (Iowa has currently 2 types of permit, one for the citizen=personal, one for LE or security=professional), there has always been major discussion of the "fact" that You can be legally right, morally right, but civilly liable. IOW, it can be a legal shooting in self defense, but you could still be sued for loss of consortium, monetary supprt, and the like... We have often been told that every shot fired, every individual bullet casing, could be a seperate suit.
Our law in Iowa is changing after the first of the year, making us a "shall issue" state (yay).
Friends of mine recently attended a NRA gun safety course... which meets the requirement of the new law... no gun handling required.
One of them had been to the CWP course under the old law (but had not passed the range qualification), and at that course, was taught the same as I had been all these years regarding civil liability. The other was waiting for the new law to take effect, so they both went to this course together and will submit their documentation after the first of the year.
At this current course for the new permit, which was given by a "soon to pass the bar"-almost-lawyer, they were told to be concerned about civil liability... but not so much.
Without giving all the various codes here which would make this unbearably long(er)... Here are pertinent truths about Iowa law.
You can use "reasonable force" including deadly force to prevent injury or risk of safety to yourself or another, and you do not have to retreat from your home, place of business, or employment. (704.1 "reasonable force").
We went all through that in class... and then the instructors warned us about the civil liability. In the NEW class, although the laws have not changed regarding reasonable force; the instructor, the almost-a-lawyer brought to light this bit of Iowa code:
So, it seemed to him that while we don't have a specific "law" called "Make My Day," "Castle Doctrine" or "Stand Your Ground"... that the laws we DO have cover it. And that any civil suit would/should be summarily thrown out if the defender was using reasonable force (which could concievably be determined by the original investigating officers (not pressing charges), or being found innocent of using unreasonable force (at a criminal trial)).
707.6 Civil liability.
No person who injures the aggressor through application of reasonable force in defense of the person's person or property may be held civilly liable for such injury.
No person who injures the aggressor through application of reasonable force in defense of a second person may be held civilly liable for such injury.
IANAL.. but it certainly seems this instructior was correct. (does injury include death?). So, Iowa may be a good place to be if you defend yourself legally.