Three people have been charged in connection with alleged irregularities in the proxy voting for the House of Keys by-election in East Douglas last May.
They are due to appear in court on March 8.
In addition, police say five people remain on bail while they complete their enquiries.
They will appear to answer their bail next Monday, February 7.
Police say a file is currently with the Attorney General, and a decision is awaited.
Two suspects in custody following Ramsey incident
Police say Tesco and car park will remain closed while investigation continues
Consultation open on plans to formally recognise the heritage of Douglas Head
Move would 'formally recognise the area’s unique heritage, architectural character and natural environment'
Police dealing with 'serious incident' in Ramsey
Bowring Road Tesco store closed following incident in the car park
Drop-in session to support Isle of Man charities
Meeting to provide information on planned updates to Island’s Countering the Financing of Terrorism framework