The European Digital Rights initiative (EDRi) has published a tool to answer the European Commission's consultation on investor-to-state dispute settlement (ISDS), probably the most controversial element of proposed EU trade agreements. The consultation has been extended to 13th of July. (Alternative: answering guide as pdf)
ISDS gives foreign investors, usually multinationals, the right to circumvent domestic courts and challenge decisions of states for international investment tribunals if decisions may lead to lower profits than expected. The cases are decided by for-profit arbitrators, they would be able to overturn decisions of supreme and human rights courts. For an introduction see Nobel laureate Joseph Stiglitz or Vrijschrift.
EDRi's answering guide points out procedural and substantive issues with ISDS. The guide has a focus on human rights and the negative effects ISDS has on our ability to reform copyright and patent law. If you do not have a lot of time you may like to focus on questions 5, 7, 8 and 13.