Fair and equitable treatment/Minimum standard of treatment, including denial of justice claims
Arbitrary, unreasonable and/or discriminatory measures
Umbrella clause
http://www.iareporter.com/articles/poland-claims-round-up-at-least-a-dozen-investment-treaty-arbitrations/ (requires subscription)
http://www.dn.no/nyheter/finans/2015/01/02/2154/Landbruk/polsk-grdsdrm-endte-med-tiltale
http://przedsiebiorcarolny.pl/index.php?content=2164
http://www4.rp.pl/artykul/1170123-Dwaj-bracia-z-Norwegii-utopili-w-Polsce-miliony.html
http://orka.sejm.gov.pl/Druki8ka.nsf/0/0F64826B3921BD1FC1257F8D00254872/%24File/393.pdf
http://www.iareporter.com/articles/poland-prevails-in-face-of-claim-under-norway-investment-treaty-crawford-chaired-tribunal-analyzes-attribution-issues/ (requires subscription)