Visitors and Guests: If I Call the Cops on My Sons Guest, Can They Put Them Out

My question involves landlord-tenant law in the State of: California
My son has guest over all the time. He signed the lease agreement with
Me but he doesn't pay any rent. Can the cops do anything about his guest
?
If not what can I do to insure they won't come over again without kicking my son out. Thanks. My son is in his
20s

Visitors and Guests: If I Call the Cops on My Sons Guest, Can They Put Them Out