A container and a method for transporting controlled substances are provided. The container comprises a locking assembly configured to lock and unlock the cap to the housing. A processing structure executing instructions to measure a time after the container is closed and locked by the locking assembly. A computer system comprising instructions executed by the computer device for operating the container is also provided. The instructions comprise verifying the identity of the user, verifying if the container is closed, instructing the locking assembly to lock or unlock the container, setting a timer and displaying a time of the timer. The invention is designed to help reduce drivers driving under the influence of controlled substances and to provide a transparent tool for both law enforcement and to protect the end user from false arrest.