Thinking a bit about security does not only help visitors and yourself directly but can also save you from rather inconvenient liabilities.

Demands

Obviously, some of the things mentioned above are quite valuable. So you should consider the local situation:

Depending on the above situation, you have to decide how to handle the demands. The result of that decision has to be communicated! This especially applies to your insurance and exhibitors, but—at least partially—also to speakers and visitors. Otherwise, you might be in for rather unpleasant experiences if something happens.

A very good solution:

An acceptable solution: