Sadly there is no hangar for that helicopter, I do think that this incident will be a lessons to be learned as all such incidents are. There are many reasons why the hangar which is planned never got put in place in time, but as far as I am aware all AOU's who have a hangar do not put it away during working hours unless its broke or the wx is bad. I think that will be reviewed. However if someone is intent on such acts they would still find a way...