The number of juveniles being arrested in Montgomery County, Maryland, is down compared to 2019, but the nature of the crimes — and the ages of some of the juveniles involved — is what concerns police, prosecutors and the community. In 2019, there were 1,646 arrests of juveniles in Montgomery County, according to data from the Montgomery County Police Department provided to WTOP. That number plummeted to 393 in 2021 — during the height of the pandemic — but has steadily climbed since then.