Final answer:
The term for the investigative technique that comprises data mining, audits, computer searches, and financial analyses is Documentary evidence. It is instrumental in establishing facts for legal and financial investigations, ensuring conclusions are supported with relevant information.
Step-by-step explanation:
The overall term for the investigative technique that includes gathering evidence through data mining, audits, computer searches, net worth calculations, and financial statement analysis is A. Documentary evidence. This form of evidence is crucial in various investigations, particularly in auditing, finance, and legal inquiries. Methods such as data mining and financial analyses are essential tools used to uncover and support facts, contributing to a final judgment. Documentary evidence helps demonstrate whether a problem is real and supports the proposed solutions with facts, thus it is critical to gathering more evidence than one thinks necessary to ensure it is both sufficient and relevant.
It's important for researchers to keep accurate and detailed notes of all information and evidence gathered, ensuring that sourcing is correct and that the evidence can be relied upon in the presentation of findings or in forming a conclusion. Consistent and organized record-keeping is essential when engaging in the rigorous process of collecting documentary evidence.