it specified the rules of war.
The Geneva Convention
If you mean Geneva Convention then yes, it does. It violates article 3 of the Geneva Convention making it a crime.
There is not a "Geneva Convention" - rather, there have been a series of conferences which have produced multiple treaties which comprise the Geneva Conventions. They cover agreements on the proper conduct of warfare. See the related question for more information about each treaty and what it covers. Also, see the link on The Hague Conventions for more treaties related to the conduct of war.
The singular term Geneva Convention refers to the agreements of 1949.
Geneva Conventions
The Geneva Convention had set rules for warfare set by international agreements. People committing various types of war crimes would tried in Geneva. Special war crimes were to be held in Nuremberg. This would include Nazi's and other soldiers or leaders who committed genocide for example.
Yes. The Geneva Convention bans it, but that's not to say that all countries have signed up to the Convention or that they abide by it.
"The 1949 Geneva Conventions. The first Geneva Convention protects wounded and sick soldiers on land during war. This Convention represents the fourth updated version of the Geneva Convention on the wounded and sick following those adopted in 1864, 1906 and 1929. It contains 64 articles."
1949
John Calvin
At the convention, did they say the rights for an asylum seeker?
John Calvin