[header] How to take legal action when assaulted by a retail worker [title] Call the police. [step] Either you or a witness may want to call the police immediately. If you believe you are in immediate danger of continued assault, call 911. 
Otherwise, find a non-emergency number for the nearest precinct. [substeps] If you're injured, you may want to seek medical treatment before you report the incident to the police, unless the injuries are minor.