Examples:

• Call the police and ask to talk to those two cops from last night.
• Call the police and tell them what you told me.
• Call the police, if they haven't already been sent for.
• Call the police and tell them what you told me.
• Call the police a dozen times, nothing happens.
• Call the police if it keeps happening next month.
• Call the police immediately and get a doctor.
• Call the police and tell them what's going on here.
• Call the police, call the army, there's been a massacre.
• Call the police and tell them to come here.