Can we trust the safety team?

Occasionally I see a young woman from the safety team sneaking around the different areas I work at or pass. She's standing there, watching people, never talks to anyone.

I wonder if she's trying to find reasons to write someone up or is actually interested to minimise safety hazards. As a T1 I can't ask her what she's doing there, as its none of my business but given there are always managers sneaking around trying to find out who's on the phone or clock out 10 seconds earlier for break, I'm worried there's more predators making life hard.