electronic tagging
noun/ɪˌlektrɒnɪk ˈtæɡɪŋ/
/ɪˌlektrɑːnɪk ˈtæɡɪŋ/
[uncountable]- the system of attaching an electronic device to a person, animal or object so that the police, etc. know where the person, animal or object is
电子标识跟踪系统（附于人体，以便警方等知道其行踪）