Final answer:
The type of evidence from individuals is called Testimonial Evidence, while Forensic Accounting, Surveillance, and Data Analysis are key techniques in fraud investigations.
Step-by-step explanation:
In law, the types of evidence gathered from individuals and fraud investigation techniques are critical components. The type of evidence gathered from an individual's own account or testimony is known as Testimonial Evidence, which can be highly influential in legal proceedings, especially when provided by an expert or an eye-witness.
When it comes to fraud investigation techniques, examiners employ various methods such as Forensic Accounting, where they analyze financial records for signs of manipulation or discrepancies, Surveillance, which involves the monitoring of subjects believed to be involved in fraudulent activity, and Data Analysis, which uses software and statistical methods to detect anomalies or patterns indicative of fraud.