The type of event is one factor that will drive the appropriate response. Actions that could save lives in one situation could cause death if applied in a different situation. For example:

• Weapon reported—Some of the most common weapons situations are those where a weapon has been reported or detected. If people misread this situation and react with an approach that might be appropriate when confronted by an armed aggressor, an avoidable weapons assault may be created.
• Threats or brandishing a weapon—If a weapon has not yet been used, proper handling could keep the situation from turning deadly. Aggressive reactions could easily result in a weapon being used.
• Suicide threat with a weapon—The person could decide to open fire on others. At the same time, care must be taken not to take actions that could make the situation worse, such as trying to disarm a person pointing a gun.
• Active shooter—Although such incidents can involve mass casualties, they are also rare and should not be the only focus of prevention and preparedness.
• Hostage situation—Avoiding harm to the hostages is a key factor.