Get a preliminary picture to see if the case is worth pursuing, and potential for post judgment collection.
Check out the credibility of your client and/or their witnesses, as well as potential defendants.
Get another pair of eyes on the discovery to help determine liability.
Confirm the right parties so you can win an enforceable judgment for your client, or find additional defendants.
Obtain statements that corroborate your client's account of events, or alert you to discrepancies.
Find the current whereabouts of potential defendants and witnesses.