electronic tagging

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++ˌelectronic ˈtagging noun [uncountable]  a system of attaching a small piece of electronic equipment to a criminal, which allows the police to know where he or she is 〔警方用于追踪罪犯的〕电子标识跟踪系统，电子追踪系统

Examples from the Corpus

electronic tagging• The guidelines say electronic tagging should only be used with the consent of residents or a proxy.

ˌelectronic ˈtagging nounChineseSyllable  

attaching piece system Corpus a of small a

electronic tagging
ˌelectronic ˈtagging noun [uncountable]
a system of attaching a small piece of electronic equipment to a criminal, which allows the police to know where he or she is

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