What makes police officers attracted to me?

Over the weekend I got asked out on a date by a police officer that I randomly met. He is the third police officer to ask me out. I dated one from another town awhile ago and another had asked me on a date a few years ago. Is there a certain personality type they go for? Could just be coincidence too. None of them know each other as they are from different cities.
What makes police officers attracted to me?
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