Police inspector who collaborates and clashes with Holmes regarding the Drebber case. Pursues Stangerson as a suspect and discovers the double murder scene. His dog accidentally ingests a poison pill, revealing the murder method. Ultimately receives public credit for solving the case alongside Gregson.
Holmes's deductive approach conflicts with Lestrade's conventional police investigation.
Holmes clashes with Lestrade over the direction of the Drebber investigation, although both continue examining the murders.
The two inspectors operate as institutional colleagues on the murder case.
Gregson and Lestrade jointly participate in the investigation and ultimately receive public credit for solving the case.
Related entry on Wikidata (Q1067723), public domain (CC0).