CREATE TABLE table_5808 ("Date" CLOB, "Venue" CLOB, "Opponent" CLOB, "Score" CLOB, "Competition" CLOB)

Which competition had an opponent of Police at the Selayang Stadium?
SELECT "Competition" FROM table_5808 WHERE "Opponent" = 'police' AND "Venue" = 'selayang stadium'
SELECT "Competition" FROM "table_5808" WHERE "Opponent" = 'police' AND "Venue" = 'selayang stadium'