This cartoon by Steve Bell from The Guardian relates to the execution by lethal injection of death row inmate Troy Davis in Georgia. The execution went ahead despite serious doubts about Davis's guilt, after the US supreme court refused a last-minute appeal.
The cartoon shows a statue of Lady Justice strapped to the execution table being given the lethal injection by a 'doctor' with a Georgia state flag on his back. Her scales and sword lie on the floor. Through a window in the wall we can just make out the heads of two 'witnesses'.
The symbolism is clear: the execution of Davis is a crime against justice.