After being hauled before the courts, defendants are offered the chance to give their side of the story.
But some of their explanations are more plausible than others.
Whether it was the dealer who had 'no idea' how eight kilograms of cannabis ended up in his bedroom, or the motorist who denied that driving at 70mph in a 30mph was dangerous, during the past 12 months judges have heard many questionable excuses from criminals.