Need help from CA HS umpires

[Andy]

I worked a multi-state HS tourney this past weekend in Bullhead City, AZ. Several teams from CA were there.

Situation:

Two SoCal area teams playing each other, R1 on first, 2-2 count on the batter. R1 steals on the pitch, pitch called a ball and B1 runs to first base. F2 throws to second, but F6 just cuts off the throw in front of second base and does not attempt to tag R1. My partner (PU) calls B1 back to bat with a 3-2 count and leaves R1 on second. Defensive coach comes out of the dugout wanting B1 called out for interference and R1 returned to first base. We tell him no.

After the inning, DC approaches me and tells me that under CIF rules, the batter should be out for interference and R1 returned to first base. I remind him that this tournament is played under NFHS rules and I have nothing to call on that play. He tells me that the CIF ruling has been in place for a long time.

Is this correct? I can't believe that any rule set would have this ruling. Thanks.