Suspectedly

The security guard watched the suspicious person suspectedly on the surveillance cameras.

The security guard patrolled the building suspectedly, looking for any signs of unauthorized entry.

The old house creaked suspectedly as the wind blew through the broken windows.

The security guard watched the man suspectedly as he entered the high-security building.

The security guard eyed the person suspectedly as they entered the store.

The security guard scanned the crowd suspectedly, searching for any suspicious behavior.