I started receiving restricted calls. I answer and he advises that he is Investigator Williams with the Sacramento County Sheriffs Office and is looking for a family member. I advise him that I had not spoken with him for years. He asked me if I knew a certain person which I didn't. He starts naming other relatives and their phone numbers and asking me to get them to call him at 888.497.4460 ext. 2056. I called back and it had recording if this is emergency hang up and dial 911 etc. He calls back the next day and accused me of lying about the person I said I didnt know. I called the Sacramento Sheriffs office and they tell me they have no such number. I call him back and start to question him and he gets mad and starts yelling so I hang up. He calls back yelling saying he's going to investigate my whole family and hangs up. I call back and get busy signal every since. He has blocked my phone number from calling his office. I am thinking about report the fraud and officer impersonation to the Sheriffs Office.