A sign that states "No Trespassing" has law behind it. A sign that states "No Parking Tow Away Zone" has law behind it most likely a city ordinance. Just like "Handicap Parking Only" signs have a law behind them.
Some states have specific laws about "No Gun Signs" they then have the force of law behind them. Some state exactly what the sign must say/size/etc. Some say any type sign that is visible and would come to the attention of anyone entering.
Now "No Trespassing Signs" are posted on property that the owner wants no one to enter. There property is not open to the public. Just like your home. Put a No Trespassing Sign up and the salesman calls at the door he is trespassing and you can have him charged. Put up a sign that states "No Soliciting" and if there is no specific Ordinance to back up that "No Soliciting" sign then you have to ask them to leave first. That is why most Cities have a "No Soliciting" Ordinance to give that sign the force of law. A business is open to the public and the public is invited in. If they put up a "No Trespassing Sign" on a store front then anyone who entered would be in violation of the Trespassing Law. Just like the No Shirt/No Shoes/ No Service Signs mean they won't serve you and have to ask you to leave. Like was stated earlier the sign says "No Entrance without Shirt with Collar." If you enter without a collar you can't be charged unless they ask you to leave and you refuse. Any business can refuse you service for legit reasons.
Now on
www.handgunlaw.us I put they do have the force of law. The reason I did that is because I had an Attorney in MA tell me you could be charged. I don't really agree with him but who would you believe, Gary Slider or An Attorney? I had to go with what the Attorney stated.
The reason I don't agree with him is because many states have trespassing laws stated the exact same way what trespassing is in MA and in those other states they have to ask you to leave first. I first carried MA as not sure and to look at every "No Firearms" sign as having the force of law until further info is obtained. The Attorney contacted me via email stating that they did so I had to go with that. I will always err on the side of caution when there is not enough info. I don't want to be responsible for someone getting arrested and maybe losing their right to carry. I also knew that when I added the No Firearm Signs Section to Handgunlaw.us there would be some states that would be questioned no matter which way I worded it. It is just very difficult to know exactly how the laws will be applied.
I had Pennsylvania as The signs didn't have the force of law. Then there was a huge discussion about this and after contacting three sheriffs, 2 attorneys and One Judge I had 4 telling me they didn't have the force of law and 2 that stated they did. So I now carry PA as ????????? Not Enough Information Available.
I just can't go with what someone posts on a forum. I have to go with what someone in the system in a position to know a lot more than me tells me. If I get someone in a position of authority in MA tell me they don't I will most likely change it to ??????? Not enough Info. Until I get that from someone in a position that should know I have to go with they do have the force of law in MA.
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Gary Slider
Co-Owner Handgunlaw.us
Member Armed Citizens Legal Defense Network.