From WoWWiki
Judgement of Justice is a new Paladin ability in Patch 3.0.2. It replaced the Judgement effect of Seal of Justice. It is trainable at level 28.
As with all Judgements, your Miss chance with Judgement of Justice is the same as your miss chance with a melee attack.
Tips & Tricks
PvE
This judgement is very useful to stop runners, especially in tight areas such as in the Scarlet Monastery.
PvP
The movement speed limit of the judged player is not considered a movement impairing effect, meaning acts such as shape shifting and Hand of Freedom will not remove it. This prevents a player from going above their normal run speed. Thus, for instance, a Druid who is affected by the Judgement will not go any faster than the normal run speed if they shift into Travel Form, a Rogue who uses Sprint will receive no speed boost, and any player riding a mount will receive no speed bonus from doing so.
External links