"I grew up with a father in law enforcement and it was a career path that I always knew would be mine one day. Growing up, I loved to see the pride in my dad's eyes when he came home after a shift. I heard stories of him helping people and taking steps to make our community safer. I want to do the same."
The interviewer would like to know the driving forced behind your choice to be in law enforcement. You can give an answer that allows some personal insight if you wish. The interviewer must see that you have a passion for this career path! Your passion is what will keep you in this role for years to come. Show the interviewer that you are committed.
"I am happy to comply with any background check required. My record is clean and I have a strong credit history. I do not participate in drug use, either. You can be assured that if you hire me for this role, I will maintain a clean record."
For obvious reasons, law enforcement agencies need to be very cautious on who they hire. There is a chance that much of the information you are going to access could be confidential and dangerous if put into the wrong hands. You will be working with the public, and with vulnerable individuals. Assure the interviewer that you are most willing to comply with any form of background check they require.