Final answer:
An auditor should obtain evidential matter concerning all aspects of third-party litigation except for the jurisdiction in which the matter will be resolved, as this is typically not relevant to the financial statements.
Step-by-step explanation:
An auditor is responsible for obtaining evidential matter relevant to various aspects of third-party litigation against an entity. They must consider the period in which the underlying cause for legal action occurred, the probability of an unfavorable outcome, and the existence of a situation indicating an uncertainty as to the possible loss. However, the jurisdiction in which the matter will be resolved is typically not a factor that auditors need to consider when obtaining evidential matter.