might be--Do LE read this board and use information here to trap providers or hobbyists? Most likely.  If you see well reviewed providers with reviews from established hobbyists, you are more likely to stay safe.

reading reviews.  At least no cop I know.  When caught, the cop would be fired.  Yeah, sure, you are "investigating".  Explain it to the Chief...   That doesn't mean Cops don't read TER...  just not official duties.  
Anything put out on the internet becomes public.  Cops, boyfriends, pimps, competition, family members...  can read TER.  It is Google-able.  So reviews should not reveal sensitive information like real names, particular hotels or locations.  My first successful meeting...  the gal explained her security needs & impressed me with using a nearby city not her exact section, nor a detailed description of the location which might be recognized.  

LE might well use TER or other public information in the course of an investigation if the trail led here.  For instance, if a provider was busted, they would secure her property including her phones & laptop.   If they have her dead to rights...  might not bother with her devises.  But on the other hand, there's the chance that they might copy her hard drive to go after her agency or pimp.  

Few areas...  have the resources to devote a full time squad to vice.  Typically, the agency runs a quick sting once or twice a year to show they are "cracking down".  You'll see some currant threads on busts on the legal board right now.  But in between LE has more important things to do.

This hobby is all about discretion.  You need to be discrete, the gal needs to be discrete.  Being sloppy gets folks caught.