There won't be an issue... the marker they use will interact with THC in breath, there is no DNA or any molecular fingerprint obtained. There device also detects THC in parts per trillion, unlike Cannabix which will likely only be parts per billion. This means Hounds Lab will be able to detect THC for even LONGER. Maybe 3-4 hours, which is even better. it's more accurate.
Hound Labs:
1. More accurate
2. Longer detection window
3. Cheaper production
4. Handheld device... not computer sized
5. No need to plug into wall because not relying on mass spectrometry
6. They CAN DETECT THC AND ALCOHOL -> it's dual.
every police force will buy that.