A spokeswoman for Nottinghamshire Police, said: "Police will be speaking to former residents and their families and will work closely with partner agencies to establish if any criminal offences have taken place."
"A police investigation has been launched after concerns were raised about the standard of care provided to residents at Autumn Grange."
Nearly 30 residents were moved out of a Nottingham care home today after "serious concerns" about the standard of care provided.
More top news
Police are appealing for information after the body of a 60-year-old man was discovered in Warwickshire.
Detectives investigating a burglary at a shop in Derby have released CCTV images of men they want to speak to about the crime.
A funeral fund for Coventry schoolgirl Sophia McDonald has exceeded its target within a week.