| bugging(scrutiny, investigation, monitor, tap) |
| care(scrutiny, investigation, monitor, tap) |
| control(scrutiny, investigation, monitor, tap) |
| direction(scrutiny, investigation, monitor, tap) |
| eagle eye(expression, scrutiny, investigation, monitor) |
| examination(scrutiny, investigation, monitor, tap) |
| eye(scrutiny, investigation, monitor, tap) |
| following(scrutiny, investigation, monitor, tap) |
| inspection(scrutiny, investigation, monitor, tap) |
| lookout(scrutiny, investigation, monitor, tap) |
| scrutiny(investigation, monitor, tap, shadowing) |
| spying(scrutiny, investigation, monitor, tap) |
| superintendence(scrutiny, investigation, monitor, tap) |
| supervision(scrutiny, investigation, monitor, tap) |
| tab(scrutiny, investigation, monitor, tap) |
| tail(scrutiny, investigation, monitor, tap) |
| tap(scrutiny, investigation, monitor, shadowing) |
| track(scrutiny, investigation, monitor, tap) |
| vigil(scrutiny, investigation, monitor, tap) |
| vigilance(scrutiny, investigation, monitor, tap) |