One suburban Chicago police department had a new top cop on Wednesday.
Adam Broderson -- a 7-year-old boy with a heart defect -- was named sergeant by the Buffalo Grove Police Department for a day, and got to hang out with the other members of the force.
Adam dreams of one day growing up to be a police officer, but has already had to tough out several surgeries during his short life due to a rare heart condition that left him with only one working ventricle.
His day on the force was a surprise, and the young boy suited up for SWAT training, patrolled the village with his partner and even got to catch a bad guy in a simulated arrest.
He even got to train at the shooting range, which wasn't the favorite part of his day because of the noise.
The police department set up Adam's special day after seeing a letter he wrote in school.
Adam's parents say after suffering through three major heart surgeries, getting to live out his dream was the chance of a lifetime.