The hand-held breath test, which is expected to become available in February, can detect a presence of THC on the breath for up to two hours after use. (Credit: courtesy photo)Six months after New York State lawmakers voted to legalize marijuana use for medicinal purposes — and as pot laws become more relaxed across the U.S. — the availability of a breath analysis test to help determine if drivers are under the influence is that much closer. Researchers with a Canadian company called Cannabix Technologies Inc. say they have the technology for a THC detection test that’s similar to an alcohol...