Final answer:
The most reliable way to recall an incident that happened six months ago, for which you have a spotty memory, would be to review the prehospital care report you completed at the time of the event.
Step-by-step explanation:
If you are involved in a lawsuit over a stabbing that occurred six months ago, and your recollection of the incident is spotty your best means of remembering what occurred would be to review the prehospital care report. Your own contemporaneous documentation will typically contain the most accurate and detailed account of your observations, the care you provided, and the patient's condition.
While other sources such as the police report, discussing with your partner or meeting with witnesses can provide additional context or perspectives those sources may not be as reliable or thorough as the prehospital care report you compiled which is created specifically to record medical interventions and observations. Trusting your own documented evidence, as written close to the time of the event, will ensure that your testimony is as accurate and unbiased as possible.