Introduction Investigative journalism is a powerful tool for solving cases in today’s democratic world. Investigative journalism plays a core role in informing the public on essential reports and exposing unethical issues worldwide. Today’s investigative journalism is a robust industry in revealing society’s dark secrets and creating awareness of the dangers lurking in particular communities globally. The world is more involved and informed on trends and global issues that significantly affect the social, economic, and political spheres through investigative journalism. Journalism is also helping authorities unfold cases beyond their jurisdiction due to governmental restrictions since investigative journalists can work independently and secretly to uncover truths. However, investigative journalism did not possess the power of exposing societal evils throughout history. The industry has undergone challenges, threats, and evolutions to become a regular practice in helping to solve cases in many countries. In Ireland, investigative journalism started in the mid-20th century despite objections and censorship from various groups. The Irish government and religious institutions, particularly the catholic church, had restrictions against investigative journalism throughout history. They limited the journalists’ access to critical records providing evidence through censorships, limiting investigative journalists from accessing crucial cases. However, journalists have exposed many scandals in culture, religion, and the government through investigation using anonymous sources. This essay reviews and explains the investigative journalists brought to light hidden cases of child sexual abuse in the Irish catholic society and corruption cases involving government officials. Definition and History Investigative journalism refers to reports involving in-depth investigation on a particular matter hidden from society and has significant impacts on people’s lives. The issue may be political, religious, or a critical concern in the community that needs evaluation and thorough investigation into the matter (Lynch, 2021). Most investigative reports focus on corruption, government policies, and uncovering dark secrets in society such as cultic groups, sexual abuse, and mysterious murders, among others. Investigative journalism requires an organized team of expert reporters to uncover mysteries hidden in archives and unauthorized records. Thus, the practice needs discretion and the utmost attention to obtain and report the necessary information. In Ireland, journalism developed in the mid-20th century as a result of many changes in the country. During the century, Ireland went through many changes socially, culturally, and economically due to the fight for independence and obtaining freedom (Horgan and Flynn, 2017). The modifications brought critical social, religious, and cultural issues that people were ignorant about, which posed a significant threat to the community. The problems were controversial and needed immediate addressing, which caught the attention of investigative journalists trying to make the practice professional and valuable to society. The journal