Following is a snippet of tomcat log when groovy is deployed and Rail Inspection Program is run. The unit was associated with an Order (EDO) for testing purposes. Also a placard was associated with the unit to test the placards mismatch field. Since the unit doesn't require any placards, attaching the observed placards leads to mismatch being true (as shown in the log).
Go to the Hazards screen and add observed placard(s). Save the changes by pressing the green button. This takes you to the main submit screen. Submit your changes by pressing the regular forward green button.
Since the unit shown here is not requiring placards, the groovy logic that is deployed throws an error. Underlying framework detects presence of an overridable error in the message collector and enables a FORCE button. As can be seen in the following screen: