[Manuel_D]

Most states disallow traps - they're indiscriminate devices that could harm people with legitimate reasons to go on your property, e.g. emergency workers.

[mjfl]

what are they gonna do, arrest me?

[akomtu]

They can summon your spirit and bind it to a prison cell (assuming you'll build a pyramid with traps).

[chrischen]

They could arrest whoever owns that land.

[culi]

they'd have to navigate the dungeon first. if they do that, then I guess me being arrested is their prize

[theandrewbailey]

They're too late by definition: the dead have no need for emergency services.

[krapp]

Their fault for sending the clerics in before the rogue.

[djbebs]

There are no legitimate reasons to go on my property.

[TheCoelacanth]

Nonsense. Property ownership is not absolute.

If the police can convince a judge that there is probably cause to believe that a crime is being committed on your property and to give them a warrant, that would be a legitimate reason to go to your property.