I recommend you to watch movie "Chloe".....This is the movie about the woman who got suspicious on her husband and hired a professional lady to investigate.....I don't want to ruin the movie for you....just please watch it....you need to see that movie.....
What other Police officers are doing out there doesn't mean that your guy would do the same......
I know how it feels thinking that he placed another woman ahead of you and talked to her despite of knowing that you are sensitive about it.....but in reality, what can he do? he can't be rude and not talking to the lady either....and you might not like to have such a husband as well....
Not really sure what the situation was but just my thoughts.....
I think it's good to think positively and good about your relationship instead of spoiling it with negative thoughts.....
Also, the best way to figure out is him....ask him directly and see how is his responses? you know your husband better than anybody else.....
One evil thing is to do the same to him....you start flirting with guys, see how he feels....does he feel okay if a guy sext-ed you!!!!
I remember my cousin in Germany told me that he used to go out with his friends and come home late....his wife at that time were so upset....well....she went out a night and came even later than him to him.....he was so upset that he never did the same.....hehehe.....
We got to learn from smart ladies....

take care of yourself and be happy for having a handsome officer.....I'm sure he loves you so much that's why he's married to you for 10 years....
marjan