[umpyre007]

Originally posted by Paul Ricker
Can a fielder tag a base with the glove with the ball held in the bare hand to get a force out? Where is this rule hidden?

JEA has this to say on the subject:

Rule 2.00: A TAG is the action of a fielder in touching a base with his body while holding the ball securely and firmly in his hand or glove; or touching a runner with the ball, or with his hand or glove holding the ball, while holding the ball securely and firmly in his hand or glove.

This definition originally appeared in this exact wording in the recodification of 1950.

The distinction in this definition is clear. When tagging a base, a player may use any part of his body (e.g. foot, hand, shoulder) as long as he has secure possession of the ball in his hand or glove at the time he touches the base.

When tagging a runner; a player must have secure possession of the ball in the hand which touches the runner, or, have secure possession of the ball in the glove which touches the runner.

In establishing the validity of secure possession at the time of a tag, the umpire should determine that the player held the ball long enough and did not juggle the ball or momentarily lose possession before gaining full control and touching the runner. Unlike a catch, a legal tag is based on the status of the ball at the time the runner or base is touched and not on the final proof of possession.