This is the point. Some of the CD/SYG laws state that there is immunity if the homeowner reasonably believed that the intruder intended to do very bad things; they also state that a forcible entry is enough to presume that the homeowner had such reasonable belief. These are their words - not mine. Thus if mistaken CPA kicks down your door - you have, by law, reasonable belief that he intends very bad things...and having such belief may plug him (if you so choose). What mistaken CPA thought will probably be speculation at that point. But let's say his key is jammed in your front door and your security camera shows him muttering about why his *&^%$ door won't open. I guess the moral of the story is make sure it is your own door you are kicking in.....
That sums it up pretty accurately, but could the prosecutor prove that you were watching the security system feed to know it was a mistake? if someone kicks in any persons door, it is a very standard reaction to expect that they have forced entry into your home for nefarious reasons.
Imagine your at home, 3:00 A.M. sleeping in bed with the wife and your small children are in another room, And someone who is unknown to you kicks in your door! Do you want laws that force you to first determine if this intruding persons intents are to simply rob you, or to try and figure out if they intend to kill you before you are able to defend your family?
Or do you want to be given the benefit of the doubt that the persons intents were to rape your dog, kick your wife, and kill your children?
The way the law currently stands, if you cannot prove to the court that the intruder was in fact there to injure or kill you or your family, it is most likely a prosecutor could be successful in having you convicted of murder or manslaughter.
The prosecutor will present witnesses to the court who will say "He was only there to take there TV and his stereo, We didn't even think anyone was home". He will play this out to the court that the kid did not deserve to die because he only wanted your television, you're rich, you can afford another one easily enough. Do you feel killing a person over a television is justified? And he will successfully get you convicted of manslaughter or murder.
Under the C-D and/or SYG legislation, In addition to providing a valid defense in criminal law, many versions of the Castle Doctrine, particularly those with a "Stand-Your-Ground clause", also have a clause which provides immunity from any lawsuit filed on behalf of the assailant for damages/injury resulting from the use of lethal force. Without this clause, it is possible for an assailant to sue for medical bills, property damage, disability, and pain and suffering as a result of the injuries inflicted by the defender, or for their next-of-kin to sue for wrongful death in the case of a fatality. Even if successfully refuted, the defendant (the homeowner/defender) must often pay thousands of dollars in legal costs as a result of such lawsuits, and thus without immunity, such civil action could be used for revenge against a defender acting lawfully.
So Mr. Criminal busts into your home, you fear for your life, you shoot the intruder, the police and the prosecutor decide that your decision to shoot the intruder was in fact justified. Without a C-D, and SYG law in place. The surviving family can still file suit against you for their loss. Even if you are able to win the case against you, it may bankrupt you. So this legislation also creates an immunity from civil litigation.
I am seeing no bad in C-D laws or SYG laws. Some states have a better law than others. I would be very pleased if WI had laws as solid as FL does right now. Otherwise there is still room for a scumbag attorney to try and break you monetarily.
Since it is late, and I am getting tired. This may not be my best writing. But I am sure you can understand why this legislation is beneficial to almost everyone but the criminal and their family.