I hear people on DU say those with CWP rarely use their guns to shoot others

[sarisataka]

8. I am not sure about WA law,

in MN, even though we are a shall issue state a permit application can be denied if the sheriff believes there is "a substantial likelihood the person is a danger to themselves or others". This does not require a conviction on record as that would prohibit firearms ownership.

A person so denied may appeal this decision and it is up to the sheriff to prove to the court that the person is a danger.

So in a case like this, multiple DV accusations could result in a permit denial but if challenged there is still a presumption of innocence.
To avoid abuse of this system from either side it is a looser-pays all court costs. This discourages people who rightly know they will not qualify from trying up the courts and also is a check on anti-gun sheriffs who would deny on the slightest presumption, such as parking tickets.