Aye.
This looks like a discussion of vagrancy, homelessness, and related issues from a legal perspective, and it also seems to include some legal history (because I don’t know Chinese, I don’t feel safe saying more about it):
http://www.ccswf.org.tw/files/7100/18/子題3--4張獻忠前理事長.pdf
The Google Translate translation for “vagrancy law” (流浪法) seems to yield a lot of discussions about stray animals, so I gave up on that.
I got the above PDF by pasting this into Google: 台灣有沒有針對此的法律 流浪漢. That’s probably incorrect Chinese, but it least it got some easy-to-see results. 
For my attempt to figure out a little bit of the stuff that’s in that PDF, please see the post below.
On the principle that the law doesn’t exist in a vacuum, I leave you with this old Irish song:
