I was forwarded this email by farbsman, who was the TO/judge in the tournament discussed in the "what to do?" thread below. Since that thread had to be locked, farbsman wanted me to post this ruling as concerns shuffling, which comes directly from Steve McLaughlin at POP:
'momIn the spirit of fairness, each player should believe that both decks in a Pokémon TCG game are properly and sufficiently randomized. Neither player should have any knowledge of what order the cards in a deck are, and a player’s opponent should have as little information about the contents of a player’s deck as possible.
Unfortunately, it is possible to discreetly learn about deck contents and the order of those cards during the shuffling process, or even to force a particular order. For this reason, it is customary to offer your deck to your opponent so that they may cut or shuffle it to their satisfaction.
If a player believes that his opponent has improperly randomized either deck, they may ask a third party – a judge or a TO – to shuffle the deck for them. Short of this, it is usually enough that a player’s opponent is the last person to cut or shuffle their deck before a game begins.