Legal research is a central part of many paralegals' work. It requires thoroughly yet efficiently researching various legal sources to define issues, find relevant cases, and analyze statutes and regulations. The ability to conduct legal research enhances a paralegal's value. Research begins by defining the legal issue and determining research goals. Primary sources establish the law, while secondary sources help locate primary sources and include encyclopedias, digests, annotations, treatises and periodicals. Careful analysis of cases and statutes, including legislative intent, is needed to properly understand and apply the law.