HPD officers Sgt. Matthew McNeil (left), Nick Walker and Augusto Diaz post up in front of he Police Department’s trunk-or-treat display. PHOTO/JOHN CARDILLO

Girl Scout Troop 72361 dresses up to match its Hocus Pocus display. PHOTO/JOHN CARDILLO

Trunk themes include board games and popular media. PHOTO/JOHN CARDILLO

Girl Scouts from Troop 82357 host a glow party from the back of their trunk. PHOTO/JOHN CARDILLO

A line of cars forms through the elementary school parking lot. PHOTO/JOHN CARDILLO

Eli Marshall (left), Logan Marshall and Arthur Marshall represent Hopkinton baseball at trunk-or-treat. PHOTO/JOHN CARDILLO

Officers Augusto Diaz (left) and Noah Buentello hand out candy. PHOTO/JOHN CARDILLO