Yes, if you can, get a tour of some of the playing areas. Look for things like barbed wire fences, cliffs, rivers and lakes. Ask about local animal life, especially if the field is in warmer climates. You should know what kind of nasty animals live in your region or the region the field is located. If everything seems to check out, THEN ask about prices and what you get for your money.
Paintball is as safe as the persons running the field.
There are disreputable field owners out there, not many, but they are there. Don't be afraid to ask questions. The field is in business to cater to players, not the other way around. Images and articles are copyrighted and may not be reproduced or distributed without the written permission of their original creators and PaintballOrg . PaintballOrg is a community supported and maintained website for everything paintball.