In 1917, South Euclid became a village, electing Jack Bilkey as the towns first Marshall. The South Euclid Police Department was formed in 1924, with the Detective Bureau being added in 1948. The South Euclid Police Department Traffic Bureau began operation in 1953, with four officers being added to the motorcycle unit in 2010. That same year, several auxiliary police officers were added to the department. The SEPD K-9 unit was started in 2002, naming "Rex" as the departments first K-9.