English to Polish Law/Patents Law: Contract(s)

definicja:
negligence on the part of an independent contractor that is not connected with a manner of working or risk ordinarily associated with particular work and for which the employer of the contractor is not liable (http://dictionary.reference.com/browse/negligence)
collateral negligence doctrine:
Legal principle that an entity employing the services of an independent contractor is not liable for harm or injury caused by him or her if (1) it results from the improper manner in which the independent contractor performed his or her duty, (2) it is inconsistent with the work he or she was employed to perform, and (3) the entity could not reasonably have anticipated it. (www.businessdictionary.com/definition/collateral-negligence...