If you get in there and don't get arrested, she's no LE.  Once you are that far, there is no turning back.

If you have gotten this far, surely you realize that seeing a well reviewed lady...  getting VIP & reading the reviews to know she actually offers what you want...   Is FAR less costly than even ONE spoiled date or wasted opportunity.  
LE checks are a myth.  They presuppose that you can ask & they'll tell you they're LE or do something to prove they're not LE.  If you end up in the same room as LEO, you're not walking out without braclets.  YOU must avoid getting in that room in the first place.
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There is no such thing as an accurate LE check.  If you enter the room and she is LE your are going to jail.

I would NEVER see a provider with no reviews-You are asking for trouble-
My advice would be to see only well reviewed and highly rated ladies on TER-
Then, you know what you're getting-seeing someone with no reviews is rolling the dice with LE and risking a possibly bad time-I ask you, 'Why do it?' Good luck-

I'm a good TOFTT guy.

I survey the place before going in. See the cars parked around the hotel. See if there are people inside the car. Walk around the place to see for any suspicious thing.

And I watch the Provider's repetitive ad for awhile to see if she's real.  One other concern is not LE, but bait and switch and Scams. Like if the Provider has guy friends who will rob you.

You need to study the pictures too. See if they are genuine.  

When you see out-of-town providers, search their phone number.  See if she also advertise in her hometown.

Now if she's no LE, not a SCAM, there's one last issue ... is she GFE ?

I point blank ask. Are you GFE, you kiss on the mouth, uncovered BJ, DATY ... they may say no, but do CBJ and FS.