During a divorce, the court typically allows spouses to seek out information during what is called the discovery phase. During discovery, you can send a subpoena to your spouse's employer asking for his employment records. You can also subpoena his bank statements.
non-point source. Pollution source that is not fixed or specific like a chimney or factory. but is mobile or widely scattered such as aircraft, automobiles, small engines.
A primary source is one that was written/drawn/taken by someone around the time of the event. A secondary source is one that was created some time after the event, by someone who wasn't there but researched it, e.g. a source from a textbook or a historian.