Forensic accounting, forensic accountancy or financial forensics is the specialty practice area of accounting that describes engagements that result from actual or anticipated disputes or litigation. "Forensic" means "suitable for use in a court of law", and it is to that standard and potential outcome that forensic accountants generally have to work. It uses accounting. auditing and investigative skills to run an investigations for any case of theft and fraud. Forensic accountants, also referred to as forensic auditors or investigative auditors, often have to give expert evidence at the eventual trial. Their job is to catch the criminals of theft and fraud who appear at firms.All of the larger accounting firms, as well as many medium-sized and boutique firms and various police and government agencies have specialist forensic accounting departments. Within these groups, there may be further sub-specializations: some forensic accountants may, for example, just specialize in insurance claims, personal injury claims, fraud, anti-money-laundering, construction, or royalty audits.