9 Data Fusion and Analytics for Chief Investigators, 2022 Survey Report Top Challenges in Data Fusion for Investigation Purposes by Domains Breaking down the fusion challenges per domain, we can see that data volume remains the top challenge across the board, while the next 3 main challenges are digitization, unstructured text and data source integration. The weight of each challenge varies depending on the data access, methodology and missions in each domain. Figure 2: Top Challenges in Data Fusion for Investigation by Domains *Question allowed more than one answer and as a result, percentages will add up to more than 100% 78% 69% 67% 64% 63% 41% 70% 38% 50% 36% 37% 37% 48% 31% 58% 41% 47% 30% 43% 38% 42% 45% 37% 19% Customs/Transportation Illegal immigration Financial fraud Border control Terror Crime Data volume Digitization Unstructured text Integrating new data sources