Three events showed the Catholics had become a serious threat: Mary, Queen of Scots becoming a magnet for Catholic conspiracy, the excommunication of Elizabeth by the Catholic Church, and the arrival of Jesuit missionaries in England from 1570
1. Treason Act - anyone who claimed Elizabeth was not the rightful queen was a traitor
2. Act of Persuasions - increased fine for not attending church to 20 pounds per month
3. Act against priests - gave priests 40 days to leave the country, being a Catholic priest made treasonable, helping a Catholic priest could face death penalty