Which of the following is true about "seniority rules"?

Josh’s headmaster fought to keep him, but his hands were tied; under the state’s strict "last in, first out" seniority rules, enshrined in statute, the most recent recruits had to be fired first, regardless of ability.

A rolling Tuscan estate converted by the musician Sting into a paradise of vineyards and olive groves has been caught up in a police investigation after underpaid refugees were discovered picking grapes. Italian police investigating a gang who sent migrants, refugees and asylum seekers to work in what prosecutors describe as " inhumane and slave-like" conditions in Tuscany found they had been harvesting grapes on the estate, where Sting produces award-winning wines.