TS clearance questions

Hello, I currently have my secret clearance and I’ve been asked to fill a position for TS. My first question I have and potentially only depending on the answer I get is this, I turned in an application to be a police officer 3 years ago. Is the application something that would be looked at during the investigation ?

I’ve never heard of anyone being asked to list applications for jobs they didn’t get. No one would ever complete an investigation. It would take 20 years.