Initially seen as a "hump" who just carves dollhouse furniture, Lester shocks the team by finding a grainy photo of the elusive Avon Barksdale. It’s the first sign that this "misfit" unit actually contains brilliant investigators.
It establishes the series' main theme: institutional dysfunction. Quality investigative work is sacrificed for the sake of political optics. The Strategy of the Streets [S1E3] The Buys
The detail discovers the gang uses a complex code for their pagers, involving the swapping of numbers on a telephone keypad. Initially seen as a "hump" who just carves