I am not an attorney and any comments I post are not intended, nor should they be construed, as legal advice. If you need legal advice, please consult a legal expert who is familiar with the area of legal expertise you need.
I will point out some of the risks exist if you do get permission from the property owner. This post grew out of an earlier post – TheMilitaryStandard Website – September 3, 2020. In terms of urban exploring, one of the lessesr dangers is trespassing. That’s if you get caught by the owner on their property or in their building. That doesn’t include the possibility of stumbling across illegal activity going on when you urban explore. I know a few YouTubers who have disappeared while doing urban exploring. Another possibility is you injure yourself or die during urban exploring. In this case, I mentioned in the link above where Death Wears Bunny Slippers (DWBS) and his group almost died while exploring the missile silo he purchased. Good rule of thumb when you are exploring underground is to do what DWBS did after this incident and purchase a multiple gas detection device. Methane, Carbon Monoxide, Carbon Dioxide, and other potential harmful gasses may build up in places. Best to be prepared ahead of time.
Using the link above, if you go to this link: http://www.themilitarystandard.com/missile/atlas/silo/548-7.php and this link: http://www.themilitarystandard.com/missile/atlas/silo/550-7.php, it doesn’t mention a little known fact about these two missile silos. The missile silos were at one time the site of a very large LSD lab: https://www.atlasobscura.com/places/wamego-lsd-missile-silo. Imagine you went snooping around the area at the time the lab was running. I wasn’t aware of the second one being the earlier LSD lab until I saw an article on https://www.cjonline.com/article/20140901/news/309019903.
In the case of underground urban exploring or in area with poor cell reception, your cell phone may not work. Imagine you get injured and you haven’t let people know where you were going.
Here’s some basics on urban exploring and when trespassing may apply – https://adventure.howstuffworks.com/outdoor-activities/urban-sports/legal-to-explore-abandoned-buildings.htm
The issue with this type of urban-exploration activity is trespassing — at its most basic, being on someone else’s property when you’re not supposed to be. In some cases, trespassing is easy to identify: If you walk into someone else’s home after the owner told you not to, you’ve met the requirements. In other cases, though, it can get foggy, and this is one of those times. For instance, if a building is abandoned, there’s no owner to refuse admission … right?
Not necessarily. And even in that case, trespassing might still apply.
I believe the risk of injury or death far exceed the value of urban exploring when you don’t have permission to do it. In some cases, in terms of a government entity owning the building or property, they may hire security guards or have their own law enforcement personnel. For places being used to conduct illegal activity, you have bigger issues to worry about. I visit a local cemetery. There have been times where illegal activity was going on from what I could observe. It’s not done by the cemetery, but the owner is aware it happens. There are times when it’s obvious something illegal is going on and I visit a different part of the cemetery to avoid getting noticed. I am taking photographs of headstones using my smart phone, but that won’t matter to the people visiting involved in whatever illegal activity they are doing.