The practice helps clients charged with assault, domestic violence, drug trafficking, and theft, and it also handles white-collar and federal crimes. The founding principal, Mr. Sierra, is a former prosecutor for both the county and the State of Hawaii, and he has dealt with violent crimes like spouse and child abuse, and crimes committed against the government like tax evasion and welfare fraud. Mr. Sierra welcomes clients who are comfortable speaking in Spanish and Mandarin, and he gives a free case evaluation. Clients can request an initial consultation by calling the staff or filling out the online contact form.