Batter Stepping on Home Plate

 
1. A swing and then a step: The first pitch to the batter (B1) is outside, but B1 swings and misses the pitch. After B1's bat crosses home plate, B1's front foot steps completely on home plate. What is the call?

Call
In NF, when a pitch is struck (fair or foul) with the batter's foot touching home plate, it is considered an illegally batted ball (NF 7-3-2). The batter is out and the ball is immediately dead (NF 5-1-1b).
 
For #1 and #2, since the batter never struck the ball, there is no infraction, so play on, no call needed.

2. A step and then a swing: With 1 out and a runner (R1) on 1st base, the hit-and-run is on and B1 will be swinging at the pitch, no matter the location. The pitch is wild and way outside. In an attempt to hit the ball, B1 steps on the plate and then swings. However, B1 completely misses the ball. R1 advances to 2nd base on the pitch. What is the call?

Call
In NF, when a pitch is struck (fair or foul) with the batter's foot touching home plate, it is considered an illegally batted ball (NF 7-3-2). The batter is out and the ball is immediately dead (NF 5-1-1b).
 
For #1 and #2, since the batter never struck the ball, there is no infraction, so play on, no call needed.

3. With 1 out and the bases loaded, B1 has half his foot on home plate when he hits the pitch to the shortstop for an inning-ending 6-4-3 double play. Any call required?

Call
For #3, #4, and #5, since the batter contacted the ball with his foot on home plate, the ball is immediately dead and the batter is out. The runners must return to the base that they occupied at the time of the pitch.

4. Two outs, a 2-1 count, and the bases loaded. B1 has half his foot on home plate when he fouls the pitch to the backstop. Any call required?

Call
For #3, #4, and #5, since the batter contacted the ball with his foot on home plate, the ball is immediately dead and the batter is out. The runners must return to the base that they occupied at the time of the pitch.

5. The suicide squeeze is on, so the runner at 3rd base (R3) is stealing on the first pitch as the left-handed B1 squares to bunt. With B1's foot on home plate, B1 tips the pitch. The catcher catches the tip and tags out R3. Any call required?

Call
For #3, #4, and #5, since the batter contacted the ball with his foot on home plate, the ball is immediately dead and the batter is out. The runners must return to the base that they occupied at the time of the pitch.