The press trials of priest Symforian Tomicki concerned the way he edited the magazine "Szkółka Niedzielna" in the second half of the 19th century. The first periodical for the rural population appeared in the Grand Duchy of Poznań in 1837 and had a religious and economic character. After 17 years of existence, the periodical disappeared due to low interest. In 1860, priest Symforian Tomicki undertook to resume the "Sunday School". In his magazine, he published articles on religious, historical and literary topics, as well as short stories for the people. Tomicki, unlike his predecessor, published content that did not comply with the recommendations of the Prussian authorities, which led to conflicts with the police authorities and the prosecutor's office. Tomicki was put on trial for violating press law. After subsequent trials in which Tomicki was sentenced to a fine or imprisonment, his editorial office was persecuted. Another police intervention took place in 1863 after the publication of an article that was perceived as inciting high treason. Tomicki was arrested and sent to prison. After a two-year stay, he left prison, but the trials and arrest prevented him from editing the "Sunday School". Father Feliks Słomiński took over the magazine, avoiding political and social content. After returning, Tomicki attempted to continue, but had to change the subject of the magazine to avoid further interventions.