https://forums.bignerdranch.com/t/nullpointer-runtime-error-on-clicking-new-crime/8016/2
Solution to your issue.
Change the Boolean to boolean in your Crime.java
https://forums.bignerdranch.com/t/nullpointer-runtime-error-on-clicking-new-crime/8016/2
Solution to your issue.
Change the Boolean to boolean in your Crime.java