Days after Massachusetts voters embraced Comptroller Diana DiZoglio’s mission to oversee the Legislature, the Methuen Democrat formally notified top Beacon Hill leaders that his office was reviving the recent investigation and looking for missing information.

In a letter to House Speaker Ron Mariano and Senate President Karen Spilka on Friday, DiZoglio said his office plans to conduct a “performance audit” of the Legislature, including both branches and joint committees. DiZoglio wrote that the audit “will cover all matters that we were unable to fully review in our previous audit due to your refusal to participate in the audit process.”

“Our work will begin with a review of your forward balance line item, including a review of high-risk areas such as government contracts and procurement procedures, the use of taxpayer-funded confidentiality agreements, and a review of all relevant financial receipts and income information,” wrote a former MP DiZoglio is the one. “Article 12 of the General Laws Chapter 12 requires audited entities to provide our audit team with books, documents and other records related to the audit. We may also ask questions regarding audit matters to members of your staff responsible for the functions involved in this audit and request written confirmation from management of the representations your staff made to us during the audit.

He wrote that his office would be in contact with legislative leaders about an “input conference” planned for this month.

DiZoglio also copied other top Democrats in the letter, including House and Senate Ways and Means Chairmen Rep. Aaron Michlewitz and Sen. Michael Rodrigues, as well as the chairmen of the Rules Committee and the Ex post Audit and Oversight Committee.

Fifteen days before Election Day, DiZoglio’s taxpayer-funded office released its first attempt to audit the Legislature. House and Senate Democrats declined to participate because DiZoglio’s team was seeking information on legislative finances, operations and communications, the office said. Auditors said they were not confident independent financial audits of the branches’ operations for fiscal years 2021 and 2022 had been completed and also criticized the transparency and navigability of the Legislature’s website.

Mariano and Spilka, who have repeatedly insisted that DiZoglio does not have the authority to control the Legislature, accused him of electioneering. Spilka spokesman Gray Milkowski said DiZoglio was “privately focused on the upcoming election and promoting the ballot measure while the legislature is busy doing the people’s business.”

But on Tuesday night, DiZoglio gained a new arsenal when nearly 72 percent of voters voted in support of Question 1; This gives the auditor clear authority to audit the Legislature. Shortly after the race was called, DiZoglio told the News Service that his office planned to return to the 77-page audit of the Legislature.

“There was a lot of information missing that was denied to us by the Legislature,” DiZoglio said. “Our plan is to go back to the audit and get back to legislative leaders for any missing information so we can complete the audit.”

In his letter on Friday, DiZoglio signaled that he expected urgent action from lawmakers this time, writing that all requested records and information must be provided “within 72 hours from the date of the request.” Once the audit is complete, DiZoglio said lawmakers will have the opportunity to review the draft copy and comment.

“Your comments must be forwarded to us within 15 days from the notification. Additionally, if you would like a formal exit meeting, please request the meeting at this time,” DiZoglio wrote. “My office will contact you to make arrangements for an entrance conference scheduled for November 2024.”

The audit will be based on Generally Accepted Government Auditing Standards established by the U.S. Government Accountability Office, DiZoglio wrote.

Ahead of Election Day, Mariano and Spilka left open the possibility of changing Question 1 if the measure passed. Asked whether he would try to change or repeal the law, Mariano told reporters, “We’ll see how big the margin will be.”

Only 28 percent of voters rejected Question 1. A Mariano spokesman on Friday did not immediately say how the margin affected the speaker’s thinking and referred the News Service to a statement from Mariano and Spilka on Tuesday night.

“Consistent with how the Legislature has proceeded on each voter-approved question in the past, we will consider next steps on how we can best respect the Question 1 election results in a manner consistent with the fundamental principles of the Massachusetts Constitution and the separation of powers,” they said.