For the first time since its inception, the Supreme Court will have a single-judge bench hearing certain kinds of petitions from Wednesday. The new system is being introduced to dispose of piled up pending cases.A Supreme Court bench typically has at least two judges.The single-judge bench will hear appeals of bail and anticipatory bail petitions in cases that involve offences liable for punishment of not more than seven-year jail term. Earlier, such cases were heard by two-judge benches.