The PSNI is investigating the business dealings of a Donaghmore accountant following allegations of fraud.
Declan Quinn was arrested earlier this year on suspicion of fraud and money laundering offences after a number of farmers raised concerns over the management of their business affairs.
Mr Quinn has not been charged with any offence and is currently on police bail.
The 43-year-old accountant, whose main accountancy office is in Donaghmore, but who lives in nearby Galbally, has been a director of firms in Tyrone, Fermanagh and Belfast.
It is thought that up to 140 of his clients, including pensioners from agricultural backgrounds, are involved.
Detectives from the PSNI arrested Mr Quinn on August 20.
Follow-up searches were carried out in the Donaghmore area, as well as at business premises elsewhere in Co Tyrone and in Belfast and Co Fermanagh.
A Police Service of Northern Ireland spokesman said their enquiries were continuing. HM Revenue and Customs and the Chartered Accountants Regulatory Board (CARB) are also involved in the probe.
PSNI Detective Chief Inspector Ian Wilson said: “We launched an investigation following a number of complaints from farmers about the management of their business affairs. We are liaising with the CARB and with HM Revenue and Customs.
“The man (Mr Quinn) is currently on bail pending further enquiries, which are continuing at this time.” Mr Quinn’s most recent company, which had branches in Tyrone and Belfast, shut its doors following his arrest with the loss of up to 12 jobs.
A spokesman for the CARB said in a statement the body was aware that the PSNI had launched an investigation.