Arizona lawmakers were told on Friday during a hearing on an audit conducted in the state’s most populous county of inconsistencies uncovered during a forensic audit into the 2020 election.

The Maricopa County audit was commissioned by Republicans in the Arizona Senate.

Senate President Karen Fann, a Republican, issued a letter on the same day to Arizona Attorney General Mark Brnovich recommending further investigation following the audit’s findings. In the letter, she raised concerns over signature verification on mail-in ballots, the accuracy of voter rolls, the securing of election systems, and the record-keeping of evidence related to the elections.

“I am therefore forwarding the reports for your office’s consideration and, if you find it appropriate, further investigation as part of your ongoing oversight of these issues,” Fann told Brnovich in the letter.

Brnovich, a Republican running for the U.S. Senate, said in a statement, “I will take all necessary actions that are supported by the evidence and where I have legal authority. Arizonans deserve to have their votes accurately counted and protected.”

His office said that its Election Integrity Unit “will thoroughly review the Senate’s information and evidence.” Specific allegations cannot be commented on until the review is complete, the office added.

Fann said Friday at the hearing that the audit had faced unnecessary obstruction from Maricopa County officials, who went to court in a bid to try to block the audit and subpoenas from the state Senate. While the forensic audit did not uncover a significant difference in the total vote tallies—the difference was only hundreds in the final report— evidence was uncovered of numerous other anomalies, including statutes being broken and chain of custody not being followed, Fann added.

Cyber Ninjas, a Florida-based company hired by the state Senate to conduct the audit, said its review involved over 1,500 people and a total of over 100,000 hours. While the company said it only found in the recount a vote discrepancy of 994 in the presidential race and 1,167 in a U.S. Senate race, the report highlighted potential issues with a combined total of 53,305 ballots.

Maricopa County on Friday issued a series of statements on its Twitter page in response to findings laid out in a purported draft audit report of Cyber Ninja’s forensic audit that had been released ahead of the Senate audit hearing.

The draft audit report’s figures did not entirely correlate with that of Cyber Ninja’s final report. Fann said Friday at the hearing, “As you know somebody leaked one of the draft reports out over the last 24-48 hours. It was a draft report, so I can tell you that what’s in that is not entirely what’s in the final report.” However, some key allegations in the draft report regarding ballots did match that of the final report.

23,344 Mail-In Ballots Voted From Prior Address

According to the Cyber Ninjas’ final report, 23,344 mail-in ballots were received from voters’ previous addresses.

“Mail-in ballots were cast under voter registration IDs for people that may not have received their ballots by mail because they had moved, and no one with the same last name remained at the address. Through extensive data analysis we have discovered approximately 23,344 votes that may have this condition,” the report states.

Cyber Ninjas noted in its report that if ballots are sent by forwardable mail, this would violate the Arizona Elections Procedures Manual.

“The Senate should consider referring this matter to the Attorney General’s Office for a criminal investigation as to whether the requirements of ARS 16-452(C) have been violated,” the company stated in the report.

Maricopa County refuted the allegation on Friday, saying, “Mail-in ballots are not forwarded to another address.” It also asserted that voting from a previous address “is legal under federal election law,” such as in the case of American military and overseas voters. The county also said it had 20,933 one-time temporary address requests for the 2020 general election.

9,041 More Ballots Returned by Voter Than Received

Cyber Ninjas found that 9,041 more ballots were returned by voters than were sent to them.

According to the report, “9,041 more ballots show as returned in the EV33 Early Voting Returns File for a single individual who voted by mail than show as sent to that individual within the EV32 Early Voting Sent File.” “In most of these instances, an individual was sent one ballot but had two ballots received on different dates.”

Auditors later noted they were told that some of the discrepancies “could be due to the protected voter list,” but were not able to validate that. Maricopa County released a statement to similar effect on Friday.

The county disputed the finding on Twitter, saying the majority of times when there are multiple entries in the EV33 file are when voters “returned a ballot without a signature or with a signature discrepancy,” and in such cases, election staff contact the voter.

Cyber Ninjas: Voters Potentially Voted in Multiple Counties

Cyber Ninjas noted that some 5,295 ballots were affected by voters who potentially voted in multiple counties.

The company said that it had compared Maricopa County’s list of all its voters who cast a ballot in the election (also referred to as the VM55 Final Voted File) to the equivalent files of the other 14 Arizona counties, to find a total of 5,047 voters with the same first, middle, last name, and birth year, representing some 10,342 votes among all the counties.

“The Ballot Impacted was calculated by the total number of votes (10,342) and subtracting the number of maximum number of potential unique people (5,047). This yielded 5,295,” the report said.