Investigative consultants and expert witnesses provide litigation support services relevant to a wide variety of areas. Specialized corporate investigative experts can provide expert services relative to due diligence, background investigations, asset searches, corporate intelligence, pre-employment screenings and any number of types of undercover operations. Investigative consultants may be experts in the fields of fraud, forensic accounting, computer forensics, construction auditing or intellectual property protection. Aside from expert testimony, these experts provide expert reports, litigation support in terms of research, interviews, photographs, product purchases, database research, tracing services and accounting reports.