just finished his first year on the job, and in the wake of racial tensions across the country, troy berryants to show that law enforcement can change lives in a positive way. berry talks about his efforts w will see only on news4. >> what's going on? >> reporter: students at john hanson middle school in waldorf react to charles county sheriff troy berry like he's a celebrity. >> okay. what are we learning here today? >> reporter: he visits schools unannounced talking to students and passing out trading cards from the sheriff's office. >> the sheriff has seen racially charged rioting in baltimore after the police transport death of freddie gray, and he comes to schools to improve community relations here this charles county, maryland. >> so when they reach the cross, they will make positive decisions like reinforcing stay in school, be a good student, be respectful to your teachers. >> reporter: the school resource officer is an extension of the sheriff's office here. >> i have students who maybe have things going on in their lives at home or in school. they'll come to me, seek out advice.