IDS in Computer Forensics

2 paragraphs is all i need- Computer Science Major only 

Our reading this week and last looks at some aspects of the relationship  between computer forensics and IDS, and specialized kinds of tools that  can be used for intrusion analysis. For this session's conference, find  and summarize an example of ways IDS tools or techniques are used in  computer forensics. Your example might include a specific instance of  where IDS contributed to a successful forensic investigation, or a more  general description of how a product or type of IDS tool could be used  in support of forensic analysis.