The investigation, which followed Channel 4 News' own investigation into claims that Tories may have broken election law at the 2015 general election and three earlier by-elections, found:
- The Conservative Party's 2015 UK Parliamentary general election spending return was missing payments worth at least £104,765
- Separately, payments worth up to £118,124 were either not reported to the commission or were incorrectly reported by the party
- The party did not include the required invoices or receipts for 81 payments to the value of £52,924
- The party failed to maintain records explaining the amounts it invoiced to candidates in three 2014 by-elections, for work on their campaigns
The Conservative Party has been fined £70,000 by the Electoral Commission for breaking election expense rules.The commission's report highlights "numerous failures" in reporting spending on three by-elections in 2014 and the 2015 General Election.These included missing payments of £104,000 - and £118,000 that was either not reported or incorrectly reported.The Conservatives said they had accepted last March they had made "an administrative error".