human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Date, Venue, Opponents, Score, Competition
###Question: Which Date has a Competition of pl group b, and Opponents of police, and a Venue of selayang municipal council stadium?
gpt
SELECT Date FROM table WHERE Competition = pl group b AND Opponents = police AND Venue = selayang municipal council stadium