Although la Reynie used every effort to check improper publications, he was known as the patron and supporter of legitimate printing. Under his auspices several notable editions issued from the press, and their printers received handsome pensions from the State. He was a collector, a bibliophile who gathered together many original texts; and he will always deserve credit for having caused the chief manuscripts of the great dramatist Molière to be carefully preserved.
Society was very corrupt in those days, honeycombed with vices, especially gambling, which claimed the constant attention of a paternal police. La Reynie was most active in his pursuit of gamblers. The rapid fortunes made by dishonest means led to much reckless living, and especially to an extraordinary development of play. Everyone gambled, everywhere, in and out of doors, even in their carriages while travelling to and fro. Louis XIV., as he got on in life, and more youthful pleasures palled, played tremendously. His courtiers naturally followed the example. It was not all fair play either; the temptation of winning largely attracted numbers of "Greeks" to the gaming tables, and cheating of all kinds was very common. The king gave frequent and positive orders to check it. A special functionary who had jurisdiction in the Court, the grand provost, was instructed to find some means of preventing this constant cheating at play. At the same time la Reynie sent Colbert a statement of the various kinds of fraud practised with cards, dice, or _hoca_, a game played with thirty points and thirty balls. The police lieutenant made various suggestions for checking these malpractices; the card-makers were to be subjected to stringent surveillance; it was useless to control the makers of dice, but they were instructed to denounce all who ordered loaded dice. As to _hoca_, it was, he said, far the most difficult and the most dangerous. The Italians, who had originated the game, so despaired of checking cheating in it that they had forbidden it in their own country. La Reynie's anxiety was such that he begged the Minister to prohibit its introduction at the Court, as the fashion would soon be followed in the city. However, this application failed; the Court would not sacrifice its amusements, and was soon devoted to _hoca_, with _lansquenet_, _postique_, _trou-madame_, and other games of hazard.