"Detailed reports from the office of Wayne County Clerk Cathy Garrett show optical scanners at 248 of the city’s 662 precincts, or 37 percent, tabulated more ballots than the number of voters tallied by workers in the poll books. Voting irregularities in Detroit have spurred plans for an audit by Michigan Secretary of State Ruth Johnson’s office, Elections Director Chris Thomas said Monday.

The Detroit precincts are among those that couldn’t be counted during a statewide presidential recount that began last week and ended Friday following a decision by the Michigan Supreme Court.

Democrat Hillary Clinton overwhelmingly prevailed in Detroit and Wayne County. But Republican President-elect Donald Trump won Michigan by 10,704 votes or 47.5 percent to 47.3 percent.

Overall, state records show 10.6 percent of the precincts in the 22 counties that began the retabulation process couldn’t be recounted because of state law that bars recounts for unbalanced precincts or ones with broken seals.

The problems were the worst in Detroit, where discrepancies meant officials couldn’t recount votes in 392 precincts, or nearly 60 percent. And two-thirds of those precincts had too many votes."

https://eu.detroitnews.com/story/news/politics/2016/12/12/records-many-votes-detroits-precincts/95363314/

Who’s responsible for errors?

Last week, Baxter told The News 87 optical scanners broke on Election Day. He said many jammed when voters tried repeatedly to stuff single ballots into scanners, which can result in erroneous vote counts if poll workers don’t adjust counters.

“The city is responsible. Janice Winfrey is responsible,” Barrow said. “This didn’t happen because of crazy, dyslexic senior citizens who are working as poll workers, like they want to portray this. That’s people who are trying to deny responsibility.”

He has asserted on social media that Winfrey cost Clinton the election in Michigan.

Others said there could be benign explanations.

Detroit’s ballot was two pages because it included dozens of candidates for the local Board of Education. The number of pages can cause machines to jam and lead them to count too many ballots, said Genesee County Clerk John Gleason.