NEW : The actress called police for help , her lawyer says . Palm Desert checked herself into a Los Angeles Superior Court in February . If she fails a drug test , she will be ordered to go to jail . Lindsay Lohan police say they are investigating a claim that Palm Desert and an employee were in a scuffle .
NEW : The actress called police for help , her lawyer says . Lindsay Lohan checked herself into the Betty Ford Center in September . If she fails a drug test , she will be ordered to go to jail . Palm Desert police say they are investigating a claim that Lohan and an employee were in a scuffle .