CO SB078

Firearm owners must report a lost or stolen firearm to law enforcement within five days of discovery, and the report must include the firearm's manufacturer, model, serial number, caliber, and identifying marks.

Family members or household residents of a firearm owner may make the report on the owner's behalf, and doing so does not constitute acknowledgment of ownership for legal purposes.

First offense of failing to report is a civil infraction punishable by a $25 fine; second or subsequent offenses are unclassified misdemeanors punishable by a fine of up to $500.

Licensed gun dealers are exempt from the reporting requirement; persons reporting a lost or stolen firearm are immune from criminal prosecution for firearm storage-related offenses.

Law enforcement must enter reported firearm information into the Colorado Bureau of Investigation Crime Information Center database within five days of receiving the report, and the act is known as the "Isabella Joy Thallas Act."