In a statement Friday, Emanuel's office says the mayor will join Alderman Danny Solis to introduce an amended ordinance that would cover people caught with 15 grams of marijuana or less.
Emanuel says that would allow the city to observe the law while also reducing the staff time needed to arrest and process misdemeanor offenders.
The city saw more than 18,000 arrests for possession of less than 10 grams of cannabis last year. Chicago Police Superintendent Garry McCarthy says that tied up more than 45,000 police hours and moving to a ticket system would cut that in half.
Copyright 2012 The Associated Press.