ANNE ARUNDEL COUNTY, Md. — Anne Arundel County Police unveiled a new "hero cruiser" designed to serve as both a tribute and a warning to prevent drunk driving tragedies.

WATCH: Police unveil 'hero cruiser' to prevent drunk driving tragedies Anne Arundel County police unveil 'hero cruiser' to honor fallen Naval Academy graduate

The navy-and-gold patrol car is dedicated to the memory of Ensign John Elliott, a Naval Academy graduate killed by a drunk driver 25 years ago. The vehicle serves as a rolling billboard to remind drivers to stay sober behind the wheel.

The cruiser is part of the National Hero Campaign, which promotes designated drivers and works to prevent road tragedies.

"Somebody's killed every 42 minutes by a drunk driver in America every day," said a campaign representative.

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