"Servant of God" The process leading towards canonization begins at the diocesan level. A bishop with jurisdiction - usually the bishop of the place where the candidate died and/or is buried, although another ordinary can be given this authority - gives permission to open an investigation into the virtues of the individual, responding to a petition by members of the faithful, either actually or pro forma. This investigation may open no sooner than five years after the death of the person being investigated. However, the pope has the authority to waive this five year waiting period, as was done for Mother Teresa by Pope John Paul II and for John Paul II himself by his immediate successor, Benedict XVI. Normally, a guild or organization to promote the cause of the candidate's sainthood is created, an exhaustive search of the candidate's writings, speeches and sermons is undertaken, a detailed biography is written and eyewitness accounts are gathered. When sufficient information has been gathered, the investigation of the candidate, who is called "Servant of God", is presented by the local bishop to the Roman Curia—the Congregation for the Causes of the Saints—where it is assigned a postulator, whose task is to gather further information about the life of the Servant of God. Religious orders who regularly deal with the congregation often have their own designated postulator generals.

"Declaration 'Non Cultus'" At some point, permission is then granted for the body of the Servant of God to be exhumed and examined, a certification ("non cultus") that no superstitious or heretical worship or improper cult has grown up around the servant or his or her tomb is made, and relics are taken. -- Canonization - Wikipedia Article