A certified accountant serves as a trusted financial adviser and can help with bookkeeping, payroll, and planning. A forensic accountant, however, is specifically trained for investigative work. Forensic audit services help analyse and address issues like theft and fraud. You can hire a regular accountant to do your employee payroll. However, if you suspect that your business is suffering from money laundering, for example, then it’s best to hire a forensic accountant instead.