That confidence continued unabated, and the enforcement of uniformity in this fashion was followed energetically, with only such intermissions as might arise from the lack of accessible material, or from indolence in searching for it. Where there was zeal there was little scruple, as appears from a letter addressed, about 1540, by the tribunal of Llerena to all the inquisitors of Spain and Portugal. It had arrested twenty-one persons, in addition to three fugitives and two deceased, on suspicion--probably because they were on their way to Portugal--and it now asked to have all the registers of the Peninsula ransacked for evidence to justify their prosecution.[668] We have had occasion to see how slender was the proof required for this--the slightest adherence to any of the ancestral customs of Judaism, whether of religious significance or not, sufficed, and lists of these observances were carefully drawn up for the guidance of inquisitors. The more obvious, such as the avoidance of pork and lard, the removal of fat from meat, the observance of the Sabbath by changing linen, lighting lamps and abstaining from work, the killing of fowls by decollation, the keeping of stated fasts, eating meat in Lent and the like, were known of all men, and perpetual watch was kept by Old Christians on the households of Conversos, so that all such lapses were eagerly reported to the tribunals, as required by the Edicts of Faith. They furnished ample ground for suspicion, justifying arrest and trial, when inquisitorial methods insured that no lurking Judaic tendencies could escape detection. [Sidenote: _EVIDENCE OF JUDAISM_]