Several Touhou songs by IOSYS, covering Remilia Scarlet deciding to act as a police officer in Gensokyo.
Scarlet Police on Ghetto Patrol 24/7 is the first song, and is the most popular. It features Remilia and Cirno engaged in a rap and dance battle, and is the origin of the Funky meme.
Electricity has stopped! At Scarlet Call is the second song, and features the Scarlet Police working an emergency line.
The Scarlet Police outfits worn by Remilia, Sakuya, and Patchouli have become common themes wherever a police officer is needed. Cirno's first part in Ghetto Patrol has also become a popular Meme for the character.