Worth watching, just for the dig at rival programme CSI at the start of the programme (Lenny Briscoe: "Those crime scene guys are overrated. That's the problem with them, they all think they're cops.")
The rest of the episode is standard stuff; rich white guy gtes his kid into a plush school at the expense of a talented black kid. Bribery is suspected and the (very British) headmaster is hauled into court by McCoy to face the rap.
The main problem is that the evidence doesn't really stack up - you watch the rest of the programme waiting for them to reveal some hitherto unknown piece of damning evidence, but it never arrives. The trial part of the programme is therefore pretty disappointing, although it's nice to see lab rat Beck answering back to the smarmy rich guy's lawyer.