Well this is the first chance I have had to come back to this site. I have a small baby and a 7 year old as I have said, and computer time is few and far between. Hopefully now I can answer some points people have raised and then I think I might leave it at that as I don't have the time for this, I did not know much about the site. As you know this is my first post, suggested by my mother in law, to find out if anyone had ever had similar experiences. The question I really wanted to know was if any other parent had had their baby harness 'changed' at security without their knowledge. And of course the AIBU question in asking to be informed about this. Firstly what I have learnt from this posting is that people have had many random 'different' experiences at airport security, meaning that some have had their items inspected WITHOUT being present. Also- I am amazed- one mother posted that she did NOT have to take her baby out of the harness to go thru security!! Then WHY did I HAVE TO?? ..and could leave her sleeping baby IN IT and go thru the 'doorlike' detector and have her harness NOT go thru the xray. So clearly there seems to be NO PARTICULAR protocol in place regarding any of these points, people have their opinions that they are sure IS TRUTH, like I did, that it is FACT that one has to be present to have stuff inspected, but clearly from reading experiences in this forum, that is not the case. This was a question I wanted answering as I, like most of the posters, thought it was POLICY or possibly LAW or protocol or whatever, to REQUIRE that the person to whom the belongings belongs to, to be present. So this forum has been useful as my mother in law suggested it might be. Secondly, does it matter which airport? I totally thought it not relevent, and still don't. The airport security were of course called, they came to me, on the floor with my baby, they asked me if I wanted paramedics and an ambulance and I said yes. They arranged for our bags to be taken off of the plane. They were excellent, and I am positive the incident was logged! Of course it was! We did not have to go thru security again, we were taken out of a side door from inside security directly onto a street and into an ambulance. Third, I used the word TAMPERED as I thought that to INSPECT an item, the owner had to be present-as I have said.. I promise to look that word up though, I can accept if it is the wrong word. Also I find it relevent to point out that I had placed my baby in the BB upon leaving the car in the long term parking, rode the bus and went thru the entire airport with him safe in it. At security, I unplugged ONE of the base plugs to get him out handed him to my husband and took the thing off over my shoulder, as I have done many times. After security I put it back on and placed him in the same way. I rechecked/double checked THAT plug that I had just plugged him into, as that is the one that I had opened. AND I HAD NO REASON TO BELIEVE THAT MY HARNESS HAD BEEN 'CHANGED' in anyway, AS I HAD NOT BEEN CALLED OVER. I then HELD him in the BB as we were walking briskly to get to the gate and I did not want him jiggling. It was approx 5 minutes later when I lifted my arm up that he, asleep, slipped out underneath my outstretched arm. When I was waiting for the ambulance I again unplugged the base and took the BB off over my shoulder and put it aside (for 5 days)...SO..fourth point raised...is why I did not inspect it for 5 days. The next morning my husband left me and my baby to take our older son to my mothers and to go back to airport to collect luggage, a well as to go home to get some things. He took 'stuff' away with him, including the BB. AIBU in saying to you that I did not want to look at the thing? As I have said I really did not care HOW it happened, at that point. I assumed it broke, but I did not care at that point and nor could I bring myself to look at it. So when we returned home 5 days later, (5 hrs drive from the hospital and airport is where we live) the BB was where he'd left it on a pile on the bed. It was then that I picked it up to inspect it and there that I saw the buttons undone. It was there that I traced my mind back to HOW THIS COULD HAVE HAPPENED, and the only place possible was at airport security. I am not looking for anyone to BLAME. I am looking to piece together how this happened, for myself, as well as to prevent this from ever happening to anyone again, ie to find out what indeed IS policy...and for this I need to ask questions and get answers. Also I do not know that anyone did this at security for SURE, I am speculating based upon the evidence and the facts I have so far. I am and was as I have said, a few times, looking for answers to questions, one being DOES A PERSON HAVE TO BE PRESENT to have their stuff inspected etc and two being has anything like this ever happened to anyone else. It is possible that someone undid the buttons in question for 'another' reason other than inspection, (which again was why I did not use the word 'inspect' in the title of the posting) thinking it might be placed better in the trays or thinking the buttons led to somewhere ?? (which is very obvious they don't) who knows, but my original question was AIBU in asking that whoever may have done this TO INFORM ME?? I still do not think I am BU in asking this...Also the staff there DID TAKE some of my STUFF from me and place them in the tray. So that is also not true that ONLY YOU can handle your stuff. Maybe that's because I had a baby who knows again, and as I have said I am not looking for anyone to blame, I do not know that anyone there did undo the buttons or for what reason if they did, but it is totally clear to me that they were not undone before -nor ever had been-that they had it and they were the only ones to have touched it and it was working fine before. Thank you to all the mothers who have understood the absolute horror of this incident and who have offered their compassion, even if they thought I was BU. As a mother anything that happens to your children is ALWAYS your fault anyway regardless of any other facts that may or may not be true. As I have said it is very hard for me to get computer time so this might be my last post on the topic, but I will check it again IF I get a chance.