That would be Ratzinger, and he heads up the Congregation for the Doctrine of the Faith. But he isn't doing much to defend the Faith with Doctrine for the Congregation. But what do you expect under diabolical disorientation? Up is down and in is out, okay? No, kayo. Wait. Yes is no...
I heard nothing but good about Ratzinger.
But Inquisitor he is not. In the past, a special office would be set by the Pope to sit in judgement of the clergy of a particular region, exact confession, determine penance and call for conversion. So we know them as Venetian Inquisition, Albigensian Inquisition, Spanish Inquisition, etc. Each would employ methods compatible with the jurisprudence of the time and locale. That system, despite widespread ignorance about it today, worked well.
In America we have wholesale refusal to preach on matters of great concern to the Vatican: contraception, abortion, dissolution of Christian marriage. The Liturgy is systematically abused, -- not through inadvertence but wilfully. Of roughly a 100 bishops 6 had the good sense to advise against offering communion to pro-abortion "Catholic" politicians, and that was after the matter was pressed by the laity. This is at the time when the clergy's reputation has already suffered when pederasty among the priests was exposed. I don't want a cardinal attempting to beat sense into American clergy from Rome; I want a canon law prosecutor installed in each American bishopric who would make wayward priests answer specific questions of doctrine, opinion and behavior, and defrock the impostors.