Sid is sitting when Benson and Stabler are finished talking with him. When they turn and are walking away, you can see Sid is now standing with no chair behind him.
At 41:10 the judge says "...I hereby sentence you to eight years." Any real judge would know that isn't a sufficient sentence, as they must also declare which specific type of punishment or incarceration the defendant is being sentenced to - jail, prison, probation, house arrest, a psychiatric facility, community service, etc...
In one scene, Haley's pendant can be read as "Stephanie".
In one scene Stabler refers the Hayley as "Chelsea".