Denver officials are working to legalize children's lemonade stands after police shut down a neighborhood stand earlier this year for lacking the proper city permits.

The Denver Post reports Jennifer Knowles' three boys were operating a stand in Denver's Stapleton neighborhood over Memorial Day weekend, but their business venture supporting a charitable cause was shut down following a visit by police.

The officers told the family that they needed three different permits, including one that costs $100.

City council members gave preliminary approval Wednesday for a bill that would allow children to sell lemonade, coffee or tea at a neighborhood stand. The measure would pose restrictions, including an operating limit of 84 days per year and the children would be prohibited from selling near permitted food vendors.

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Information from: The Denver Post. Copyright 2018 Associated Press. All rights reserved.