It is unlawful for any merchant or secondhand dealer or any clerk, agent or employee of any merchant or secondhand dealer to deliver any pistol to any purchaser within seventy-two hours exclusive of Saturdays, Sundays or holidays after the dealer has mailed a copy of the complete record in accordance with Section 9.92.010. Also it is unlawful for any merchant or secondhand dealer or any clerk, agent or employee of any merchant or secondhand dealer to deliver any pistol to any person known by the merchant or secondhand dealer or any clerk, agent or employee of any merchant or secondhand dealer, to be a person who is a fugitive from justice or who has been convicted in this state or elsewhere of a crime of violence or of drug addiction or of habitual drunkenness or has been confined to a mental institution. Any merchant or secondhand dealer, or any clerk, agent or employee of any merchant or secondhand dealer, who has no knowledge that the purchaser is a fugitive from justice or a person convicted of a crime of violence or of drug addiction or of habitual drunkenness or has been confined to a mental institution, or receives no communication from the chief of police within seventy-two hours, exclusive of Saturdays, Sundays and holidays, after the merchant has mailed the completed record applicable to the sale, and delivers the pistol, shall not be guilty of a violation of this chapter. This section shall not apply to sales at wholesale or to sales to law enforcement officers. (Prior code § 6.22.020.)