More than 100 firefighters are convicted of arson every year, but a lack of documentation makes it hard to track EDMONTON, Canada — In light of volunteer firefighter Lawson Schalm facing charges of 18 counts of arson, the persisting problem of firefighter arson has garnered international attention. Arson expert Edward Nordskog said that firefighter arson is difficult to track because authorities don’t differentiate firefighters from other arsonists when keeping records. Sometimes, he said, documents are not kept at all. Firefighter arson, Nordskog said, is not a new trend and has been a long-standing issue. “There’s roughly 100 firefighter arsonists convicted every year in North America and all of them are serial arsonists, which means three or more fires,” Nordskog told CBC . According to Nordskog, firefighter arsonists tend to be young males who recently joined the fire service, who may become bored, desire recognition and struggle with anger or frustration.…