On 14 March 2017, it was reported that Mackinlay had been interviewed under caution by officers investigating the allegations. On 2 June 2017, six days before the 2017 general election, Mackinlay and two Conservative party officials were charged by the Crown Prosecution Service with offences under the Representation of the People Act 1983. They were due to appear at Westminster Magistrates' Court on 4 July 2017.
