I was wondering if Apple could add an alarm feature to the iPhone?

and alert police

Already a feature.

https://support.apple.com/en-au/HT208076

Hey there MsLizzie,

Thanks for reaching out to Apple Support Communities. We understand that you have a feature suggestion. We're happy to provide some assistance. You can submit suggestions and ideas here: Product Feedback

Have a great day!

MsLizzie wrote:

It’s good to know that Apple IPhone does have a feature to alert police. Thanks for letting me know. I was going to test alert feature to make sure it works but realized the police would be dispatched.

thanks again for your help.

You're welcome.