A fifth person arrested over allegations of voting fraud on the Isle of Man has been released on bail.
Officers are investigating allegations of corrupt or illegal practice in the proxy voting process ahead of the Douglas East by-election on Thursday.
A 54-year-old man was arrested earlier on Wednesday before being interviewed by detectives.
Two women, aged 23 and 24, and two men, aged 37 and 49, arrested on Tuesday have also been released on bail.
The Douglas East seat was made vacant following Phil Braidwood's elevation to the Legislative Council in April.
The House of Keys is the lower, directly elected branch of Tynwald.
The six contenders for the Douglas East seat in the House of Keys are: Kate Beecroft (Liberal Vannin party), Colin Cain (independent), Chris Heath (independent), John Joughin (independent) and Kevin Woodford (independent).