Monitoring
Interception, Tapping
noun, verbal noun
Only accept new people moving in nearby once you've finished properly monitoring them! Tapping into their phones will probably help too, but don't tell anyone I told you to do that.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
警察は、犯罪捜査のために、通信の傍受を行うことがあります。
The police may perform correspondence monitoring for the sake of the criminal investigation.