RSA 507-F:7: Privileges.

I. No defendant may be held civilly liable for damages resulting from the refusal to serve alcoholic beverages to any person who:

(a) Fails to show proof of age as required by RSA 179:8; or

(b) Appears to a reasonable person to be a minor; or

(c) Is refused service of alcoholic beverages by defendant in a good faith effort to prevent that person's intoxication.

II. No defendant may be held civilly liable for retaining documents presented as proof of age, provided such retention is for a reasonable length of time in a good faith effort to determine whether the person is of legal age or to notify law enforcement authorities of a suspected violation of law.

III. No defendant may be held civilly liable for using reasonable force to detain a person who is attempting to operate a motor vehicle while intoxicated for a reasonable period of time, necessary to summon law enforcement officers.

IV. This section does not limit a defendant's right to assert any other defense to a civil liability claim otherwise provided by law.