There are many LEO's who have no interest in guns, yet are proficient in the use of thier duty firearms. Some don't even keep guns at home. Some without the direct interest are also the ones who get into highly stressful shootings and 10X the bad guy with a perfect shoot!
Then there are LEO's that have a great amount of tactical knowledge. Most law enforcement agencies have adopted military tactics and training for thier officers. My depatment has some of the most advanced training anywhere and many of our cops are former special forces members.
Many cops do have good tactical shooting knowledge and a warrior mindset.
The tactical training I do and have learned comes from some great Cops and military folks! SOme of the best training in the world!
May God make smooth the path you follow!