GPS (cell phone location)  (Purpose) Identify the route of the patient Verify the consistency of the patient claims
Additionally check the previous route
Use phone GPS (latitude and longitude) data  Evaluate the consistency of the patient route identified via interview
Obtain additional information about the route that the patient does not remember  There are limitations to specify accurate location information because mobile phone locations are used
Errors if the name on the phone and location of purchase (overseas) are different
Long time needed to view the information if there is a large difference between the time of patient confirmation and date of symptom onset  National Police Agency