Three people have been charged after an ALERT investigation in Medicine Hat and Brooks.

Police say the investigation concluded last Friday with two separate traffic stops that resulted in half a kilogram of methamphetamine and a loaded handgun being seized.

Investigators say the Glock handgun had the serial number filed off and further investigation surrounding the gun is being conducted.

37 year old Aron Horvath faces 11 drug and weapons charges resulting from the investigation. 26 year old James Benard also faces drug and weapons charges, while 19 year old Devon Koehle was charged with possession and breaching a recognizance.

All three will appear in court at a later date.