Look for a pre-compiled survey on the topic.There are several reasons why you'll want to start with a survey that is already compiled. First, and most obviously, it will cut down on the amount of time you'll spend because it will give you some (or most) of the laws that you're looking for. Second, you can use the laws as a guide to see how laws or regulations on your topic are constructed, which will help you create a search. Third, you can use the pre-compiled survey as a way of checking your search results. If your search includes the laws from the pre-compiled survey, then you're on the right track. If it doesn't, then you need to adjust your search.