Police will decide this week whether to investigate claims that Cabinet minister Chris Huhne asked another person to take driving penalty points on his behalf for a speeding offence.
Labour MP Simon Danczuk has lodged a formal complaint with the Essex force over the allegations.
The Energy Secretary was not an MP at the time of the alleged incident and denied the claims when they were printed in newspapers last weekend.
"We can confirm we have received an email regarding a speeding offence in 2003," Essex Police said in a statement.
"This information will be passed to officers who will decide on whether an investigation will be launched. We take allegations such as this one extremely seriously and will take action where necessary."
Police are expected to examine the case for an investigation tomorrow.
Mr Huhne was an MEP at the time of the alleged incident. There was no immediate comment from his office.