ALBEMARLE COUNTY, Va. (CBS19 NEWS) -- The Albemarle County Police Department wants residents to know when detectives are investigating an incident near their homes.

There are times when law enforcement agencies will turn to the community for help.

Sometimes, that requires officers to knock on doors and ask people questions about incidents in their neighborhood.

Homeowners and tenants might not be home when an officer stops by, but now you will know when there is an investigation taking place.

ACPD has new door hangers that may appear on doorknobs at homes where an officer was unable to reach a resident during a canvass.

The department wants to make the community aware of the door hangers, saying they are not spam and they are not a scam.

If you find one of the hangers on your door, you are asked to contact the police department.