Get Advice from Your Local Law Enforcement
Once you have prepared your crisis file, contact your local station, precinct, city police and/or sheriff and discuss your situation with them. Go over the material prepared and ask them for feedback. I would tell them I want to make sure to relay the information that is important for their safety and that of my loved one if and when a crisis arises.
Gathering the basic information beforehand can improve the safety of all of the people involved in a crisis, but training can help even more. Law enforcement spend a lot of time training to properly handle crisis events. Even though they represent a very small proportion of calls for service, if we do not respond properly, the outcome can be disastrous. They practice these skills until they become an automatic response in a crisis. Repetition is critical.
In the same way, family members can train for these situations too. Use the NAMI Family-to-Family crisis file to practice calling the police for your loved one. We would suggest practicing repeatedly until you are able to get 95% of the information correct without looking at your notes. After that, we recommend choosing a regular time to practice: for example, every Wednesday as you drive to work, you can review what you would tell 911 if you need to call.
It can be scary to call the police for help when a loved one is in a mental health crisis. We hope your family can avoid a crisis and you never have to make that call. But if you do, being prepared with the relevant information at your fingertips, and your script memorized, can help keep everyone safe during a crisis.