Fair and equitable treatment/Minimum standard of treatment, including denial of justice claims
Full protection and security, or similar
National treatment
Most-favoured nation treatment
http://globalarbitrationreview.com/news/article/30739/georgian-political-battle-heading-icsid/ (requires subscription)
http://globalarbitrationreview.com/news/article/30769/georgian-political-battle-escalates/ (requires subscription)