This chapter explores the forensic analysis of telemetry logs from drones or unmanned aerial vehicles (UAVs). With the growing use of drones in civilian, commercial, and potentially malicious sectors, the need for drone forensic analysis has become increasingly important. The chapter details methods for analyzing telemetry logs, particularly focusing on logs generated by drones using the ArduPilot platform. Using GRYPHON tools, which automate the extraction and examination of telemetry and Dataflash logs, forensic investigators can reconstruct flight paths, verify command executions, and identify anomalies such as unexpected altitude changes or hardware failures. This approach provides valuable information on drone incidents and aids in accident analysis.