Twenty shoplifters were caught during a blitz last Thursday night in Sutherland Shire.
Police and loss prevention officers worked together across various shopping areas, a police statement said.
"Twenty offenders were detected which resulted in charges, criminal infringement notices and one youth caution," the statement said.
"In one incident, a 17-year-old youth and her mother were detected stealing items together. Both will receive legal action.
"Further operations will be conducted."