The file contains Hank's account, including how he tracked Jesse Pinkman and was called to the hospital, only to find the suspected drug lab RV destroyed upon his return.
Of course, the process of him beating Jesse is also documented in the file; these are facts that cannot go unrecorded.
Although the DEA may not handle as many cases as the FBI, their basic file information certainly won't be wrong. Detailed parts also have corresponding photos, which can serve as supplementary evidence for detailed descriptions. Just by looking at these materials, Jimmy was able to restore the entire process of Hank beating Jesse Pinkman. However, these files lack some information.
