Beside the regular guard, Scotty, there was a guard she never saw before.

除了平常的保安员斯科蒂之外，还有一个她从没见过的保安员。

That can lead to security risks because the substitute workers are often less familiar with the inmate population than the regular guards and can miss cues indicating that trouble is brewing.

由于这些替补看守往往不如正规看守熟悉囚犯，可能错过昭示问题正在萌芽的线索，继而带来安全隐患。