If i sue you i would just have to probe that you're currently stepping the same soil as i am then the laws that apply to me will also apply to you, that's called territorial effectiveness of the law ( it will apply to every person within the political limits of the territory where the power of the legislators that pass the law extends) you can always defend yourself giving a razonable argument, if you think laws are being pass irregularly the you can attack the law for being unconstitutional.