First search result with three words
new international law — and first is the book !
Edited by Christoffer C. Eriksen and Marius Emberland
This volume contains revised versions of a select number of research paper
s presented at a conference in Oslo, Norway, entitled “The New International Law”.
Second link is interesting, some talks about how is necessary
to punish people who tortured others, following by international rules.
Next is also pretty old-2011 year published.
It’s about how to understand «international Law»