the temporary internet files cache can be useful in certain situations. for example, if no internet connection is available, previously cached websites are still available offline. certain online media files (such as embedded flash movies) are not easily accessed directly through internet explorer, but are automatically saved into the cache after viewing them. depending on the type of website and how often it is updated, the cached data may not reflect the online version of the website. the cache is also useful for police to collect forensic evidence.