Wynn Las Vegas Theft at te Wynn Hotel leaves customer being told "there is no proof" Las Vegas, Nevada

I had the same thing happen. My purse was stolen at Blush Boutique Nightclub. I had my purse on me, I knew the people who stole it and the time, I reported it within 5 minutes of it being stolen. There were so many issues that took place, these people were using my credit card next door that night, a stolen on at that!! The Wynn security filed the complaint and told me they would investigate the matter by camera. They said they would reach me within 72 hours, which they never did. I called back and no one seemed to have a clue what I was talking about, It was obvious nothing was checked. I was told very rudely, that they didnt find anything after going through about 6 people. Then, about a week later, I went in personally to the security to see if anything was found, the lady there called and said that the purse was found and described it and its contents in full description, filed in my name. I waited a half an hour, so relieved and excited to at least have my id back for someone to come upstairs, only to find the man empty handed and telling me the person downstairs had made a mistake and was reading it wrong. Never received any follow-ups or proper attempts at making the matter right...so your lucky.

The management phoned shortly after posting.  They'll do the right thing.  It takes reaching the right person who is guest service driven and cares. 

They are saying there is no proof that their staff stole anything.  Now, I am not saying that someone did not steal the items. But what proof do you have that they did.  The answer is you don't have any proof other than your feeling.

Think about it logically.  The Wynn is a High End Hotel, that probably has people keeping thousands of dollars in very high end clothing, jewlery, and cash in their room.  Why would an employee(or really anyone) risk not only their job(if they were an employee) but possibly their freedom on a few clothing items. 

A bigger problem in your case, especially if they packed "light".  Is that it took your MIL until they totally unpacked when they got back to notice that the items were missing.  Did she not look in her suitcase at all during the trip? 

Also, your dates are a bit off.  If they arrived on March 8th for 2 nights that means they left on March 10th.  She did not unpack until the next morning which means the 11th.  If she contacted them that day, they said they would respond within 5 days.  Well the 5th day would be the 16th.  They contacted you on the 19th, which is only 8 days(2 of which were weekend days) after it was initally reported.  Whether they did that because of your e-mail or just because that is when they finished the investigation is impossible to tell.  So while it is beyond the 5 days promised, it was not 10 days that you are stating.

There are other possibilities.  Perhaps the items fell out of the suitcase, especially if she did ANY unpacking at the Hotel.  If these items were small enough, or blended in with the sheets(for example), they could have easily have been tossed by mistake.

Again I am not saying that something did not happen.  But you are trying to hold a Hotel responsible with nothing more than your feeling.  Just based on what you wrote here there is no proof that anyone involved with the Hotel took anything.  Hopefully you will find the items, but at this point expecting the Hotel to return them is a bit far fetched.