Detroit — The restaurant was "It's A Matter of Taste" and the menu on the night a Detroit Metropolitan Airport official and a bribe payer met for dinner included wine, kickbacks and a cocktail napkin appetizer, according to federal court testimony Thursday.

The restaurant played a prominent role in the criminal trial Thursday of former airport manager James Warner, who is accused of fabricating invoices, overcharging the airport for work performed by contractors and receiving more than $5 million worth of kickbacks during a four-year period.

That is the largest amount of kickbacks in a public corruption case in Metro Detroit history and five times as much money as former Detroit Mayor Kwame Kilpatrick received during his racketeering conspiracy.

A former airport contractor, Envision Electric owner Gary Tenaglia, provided jurors bite-by-biteinsight into an alleged bribery scheme that involved threats, lies and payoffs hidden in inches-thick envelopes.

Tenaglia testified during the second week of a rare corruption case in federal court in Detroit. He said he feared losing multi-million dollar contracts unless he paid bribes that totaled as much as $1 million to Warner, an airport inspector who approved invoices and oversaw maintenance work performed at the airport.

During dinner at the Commerce Township restaurant in late 2008 or early 2009, Tenaglia said he was ordered to remove a sweater and unbutton his shirt to prove he wasn't wearing a secret recording device. Then, Warner made clear how much one kickback should total by writing on the cocktail napkin "5K," meaning $5,000, Tenaglia testified.

Warner retrieved the napkin, the contractor said.

"And put