https://medium.com/@VitalikButerin/minimal-slashing-conditions-20f0b500fc6c
Check out this link for a blog post that Vitalik Buterin made discussing the plans and rules for Proof of Stake Capser Smart Contract and how it will be implemented over the next year. This is a must read for anyone mining or trading Ether for it has serious repercussions with a potential hard fork as well as Ether price surge for when people that want to be validators buy their 1000 Ether tokens necessary.