You are really worrying too much now.

If you are really nervous, ask her to do an outcall where she comes to you.  You would have to get a hotel room for this.

LE almost never works on an outcall basis because they like to control the environment before a bust.

I am new here and on sat I will probably see my first provider. She has 40 reviews all positive.
Now being new I am kind of nervous and my question is: how do I know she is not a cop?
Is there anything I can do for a final check? Any instances of cops browsing this site looking for inexperienced newbies like me? Should I post the provider's ad in here to get some feedback from other users?

Of course, there are no absolutes here, as anyone can get busted and flipped.  How old are her last five reviews?  Once you are at her incall and carrying the envelope there's really nothing you can do.  The so-called "LE check" is worthless.  If she's working with the cops, they will bust you no matter what you do or don't do.
Having said that, you are probably (and understandably) suffering from some "first-time nerves." If you want to post a link to her ad, do it.  It can't hurt.  Just highlight the ad's url in the task bar at the top of your screen, copy it and paste it into the "link url" bar at the bottom of a new post.  Be sure to erase the "http://" that's already there.  If anybody can vouch for her I'm sure they will.  Don't worry too much.

I'm a noob as well, and in the research part of the whole scene. I was kinda wondering the same thing as polo.marco, but in addition I was looking at potentials on Colorado Springs Ladies website. However I am having a fairly difficult time finding any recent reviews on any of their models if any at all. Just not sure if that's a good place to start with? Any help or opinions would be appreciated.

My provider only has 5 reviews, but she belongs to an agency that has many employees on here that are well reviewed.  Should I be concerned?  There never is a right answer, except to stay home.  As with everyone here, have a lot to lose.

she has 40 reviews, 99.9 percent she's legit.  You can never be sure you're not in a LE Sting, until she actually performs CBJ, or any actually sexual intercourse with you.

With that being said, since she has 40 reviews, simply let her know this is your first time, so you're really nervous. She should understand.

Thanks for your reply, that helps. The link to her ad is below...

Worrying too much? Maybe...but better safe (ok, extra-safe) than sorry, though. And here another newbie question...what if she is the one collaborating with LE? Is it possible that providers have agreements with LE to protect themselves and to keep doing their job?

I just trying to learn how this hobby works. Re-thanks folks!

Here is her link...
Her last 5 reviews are from Jan, Mar, Apr, Jul and Aug 2011...quite recent.

Thanks!

but it is not that common.

Your best bet to avoid this is to keep an eye on your local board.  Many TER posters keep an eye out for this are report flippers when they occur.

To stay safe you need to assess various risks and rationally consider their actual probability. Obsessing about one risk, in this case a sting, in the face of all evidence to the contrary distracts you from giving attention to more important considerations.

Your new question is the same one everybody has been answering. There is zero chance that an actual cop would have this many fake reviews from experienced TER members. The only possibility, which others have been replying about, is that a legit provider could have recently been busted and made to cooperate with LE (flipped). It's an extremely rare possibility in general, and the provider you're considering is about as unlikely to have been flipped as you'll ever find.

if you stop at the local donut shop on the way to the ladies incall or you decide to exceed the speed limit on the drive over.

As with many things in life, you should only proceed with and do what you're comfortable with. The risk of a provider with 40 reviews being LE or working with LE is low. However, everything's possible. It's a reality of this hobby. Usually, if the contacts are professional, you are verified, the provider has a good review history, long posting history, or whatever additional factors, that helps mitigate risk.

In the end, it's all about you. If it's an acceptable risk to you, do it. If not, don't do it.

I sometimes use a big agency and most of the girls have barely 5 reviews.  It's a little risky but not from an LE standpoint.  You just can't be totally sure what you'll get.

There are some good provides down there who are also smart and helpful, like Edrienne Cole.  But if  you want to see her, better save up!

She'd be a danger only if she's just been arrested and is cooperating to reduce her sentence.  Honestly, I think you're worrying too much, though I understand.

of no risk.  This is not a no-risk hobby.  In addition to LE, there's STDs.  And getting caught by your SO.  There is nothing anyone can say to remove these risks.  It's either a hurdle you jump over, or you don't.  In which case this hobby may not be for you.  I hope you jump, because it's huge fun.  Just not no-risk fun.