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.
Professional rivalry stemming from differing investigative methods and approaches.
Lestrade's investigative efforts inadvertently intersect with the true killer's movements.
Competing police inspectors vying for recognition and investigative control.