Looking for 2 legal terms I'm looking for legalese. 


breach of fiduciary trust (fiduciary basically means, as an adjective, 'having financial responsibility for someone else's money' from Latin 'fidere' trust)
negligence


For 1. I have 违背受托责任 and for 2. I have 玩忽职守 but I have no way of knowing if these are in fact the terms a Chinese lawyer might use.

Are they acceptable? Any improvements welcome!
New Century E-C

fiduciary


  (of trust or trustee)
  
  受信托的；与受托人有关的
  
  They have a case against their directors for breach of fiduciary duty.
  
  他们掌握了足够的证据控告董事不履行信托责任。 


negligence


  (civil wrong)
  
  过失(行为)；疏忽
  
  They tried to sue for negligence.
  
  他们试图就过失行为提起诉讼。


C&amp;T Biz

negligence


  过失 guòshī
  
  negligence clause
  
  过失免责条款
  
  guòshī miǎnzé tiáokuǎn
  
  negligence liability insurance
  
  过失责任保险
  
  guòshī zérèn bǎoxiǎn


21st Century

negligence


  【法律】 过失的 [1300∼1350]