Breathalyser devices, first introduced in the 1950s, have been a crucial tool in preventing drunk driving. However, the accuracy of these devices has come under scrutiny, especially after a viral video in 2019 captured a police officer testing over the limit on a breathalyser after eating a hot cross bun. While wrongful arrests or DUI convictions may be rare, understanding what can trigger a false positive and knowing your rights when stopped by the police can be crucial.