And when their burner is seized by the police, what protection do they have from all their accomplices being harvested from the contacts list? I guess the numb

And when their burner is seized by the police, what protection do they have from all their accomplices being harvested from the contacts list? I guess the numbers can mostly be derived by subpoenaing call records from the phone company, but the names could be useful to police. I guess really smart and serious dealers are going to use cheap burners AND not save numbers, or at least only with useless (to the police) names.