A Sinn Fein MLA has expressed his concern after it was reported that police are expanding their investigation into the alleged mistreatment of patients at Dunmurry Manor care home.
The BBC has reported that police are widening their investigation to include the care of residents at the home between June 2014 and July 2017.
It is understood police have contacted up to 70 families of patients at the west Belfast care home during this period, and intend to contact around 180 in total.
The letter invites relatives of patients to speak with police, especially if they have concerns around their family member's care while at the home.
Police launched their investigation after an explosive report into conditions at the home by the Commissioner for Older People in Northern Ireland, Eddie Lynch.
He made a damning assessment of the conditions at the facility in which he outlined inhumane and degrading treatment of residents.
Fermanagh and South Tyrone MLA Colm Gildernew said the news would cause "distress and anxiety" to residents and their families.
“When we last met with the PSNI, we encouraged them to ensure that the investigation was given sufficient resources and that the families of those involved must be kept informed throughout the process," the Sinn Fein MLA said.
“Given that the investigation remit has been extended it suggests that there are more questions regarding the oversight and management of the care home. The PSNI must be given the space to follow all lines of enquiry."