The student clearly stated an appropriate and specific question for the historical investigation: "To what extent can the 'Clean Hands' scandal be defined as a revolution of Italian politics in the years between 1992 and 2012?" The question selected has a clearly defined scope in terms of dates, significant historical figures, and historical events. The student chose appropriate and relevant sources for the topic of the investigation, including articles from well-known journals and a critical essay by a political scientist. However, the student needs to explain the relevance of the sources and whether they are primary or secondary. Additionally, the student should provide a precise analysis and evaluation of the values and limitations of the sources' origin, purpose, and content.