wiretap|wiretaps

警方获得许可对犯罪嫌疑人的电话进行窃听。

The police got permission to ___wiretap the suspect's phone.

警方在嫌疑人的电话线上安装了窃听器。

The police installed ___wiretaps on the suspect's phone line.

警方获得了许可，可以窃听嫌疑人的电话。

The police obtained permission to ___wiretap the suspect's phone.