On Astrological Judgments, by Thomas Aquinas

Because you asked if it was permissible to use astrological judgments, wishing to satisfy your request, I have taken care to write about what the sacred teachers transmit regarding this matter.

On Secrets, by Thomas Aquinas

In this short work, Saint Thomas Aquinas addresses various questions related to secrets. He argues that in cases where someone accuses another of a hidden sin that cannot be proven, the superior should not order the accused to tell the truth in the presence of the accuser, nor is the accused obligated to expose themselves. He also states that in secret matters, man cannot be a judge and, therefore, should not order or proceed unless they are a judge. However, if there is an imminent danger of scandal or harm to the community, the superior can order the subject to reveal the secret. Aquinas also discusses whether a confessor is obliged to reveal the origin of a letter containing dangerous evils of another person, which he received under secrecy, and concludes that the superior should not order the confessor to disclose where he got the letter. Lastly, he addresses the question of whether the superior can inquire by command, and the one who did it, reveal who committed a crime that is not known, and provides his opinion that the superior can order in general, but other masters do not agree.