The Los Angeles Times answers questions about the state of the Trevor Bauer investigation:
If the district attorney decides not to charge Bauer with a crime, then what happens?
LATimes.com
Baseball’s domestic violence and sexual assault policy, collectively bargained between the commissioner’s office and the players’ union, empowers Manfred to suspend a player for violating the policy. A player need not be charged or convicted.
Most of the suspensions MLB handed down came when charges were dropped or never prosecuted.