Password Policy Events Table

Hello Experts,

I am troubleshooting an issue where password policies that used to be deployed and working in an environment all of the sudden all have vanished (at least not showing in PMAdmin), other configuration settings are still present but password policies have vanished from all domains. We are using version of password manager. I am trying to find the table where password policies are stored and also table that would show any changes that have been done to password policies but not finding that information in documentation, could someone please point me to the docs or provide the name of the tables?