without documents you cannot prove in a court of law how they got in. Nothing criminal in overstaying a day visit.
here is a link on how similar laws were enacted in philly in 1956 to round up the undesirables.
http://www.law.berke...iles/Skolnick.pdf
We learn that the Philadelphia police regularly rounded up “undesirables” in periodic drives. Caleb describes a drive against those so-called undesirables who were occupying Philadelphia’s newly completed Independence Hall. The drive was—not surprisingly-- popular with the general public, and surely with the editorial staff of The Philadelphia Inquirer, which titled an editorial, “Get Bums off the Street and Into Prison Cells.”
sounds familiar to sheriff Joe doesnt it?