This is the second time that the mayor was under fire for cheating on his wife. The first time was earlier this month when text messages between Kilpatrick and his former chief of staff Christine Beatty were uncovered by state officials. According to freep.com, Wayne County Prosecutor Kym Worthy announced that Detroit Mayor Kwame Kilpatrick and former chief of staff Christine Beatty were charged in a 12-count indictment with perjury, , conspiracy to obstruct justice, obstruction of justice, misconduct in office and conspiracy because of their conduct in last year's police whistle-blower trial, Prosecutor Kym Worthy announced. Kilpatrick who is 38, is charged with eight felonies and Beatty is charged with seven.

Worthy said the perjury charges accuse the two of lying during a whistle-blower lawsuit about the firing of Deputy Police Chief Gary Brown and about their romantic relationship.

"Lying cannot be tolerated, even if a judge and jury can see through it and doesn't buy the line," Worthy said at a packed news conference.

"Witnesses must give truthful testimony," she added. "Oaths mean something."

Right after Worthy's announcement, the mayor's office sent out a news release saying he and his attorney will hold a news conference at noon to respond. But at 12:45 p.m., they still had not appeared. Currently Kilpatrick serving his seventh year in office, is the first Detroit mayor to face criminal charges while still in office. The perjury charge carries a maximum penalty of 15 years in prison. Kilpatrick is suppose to be arraigned at 5 p.m. today in 36th District Court in Detroit. Beatty hasn't said when she will turn herself in, but she must do so before 7 a.m. tomorrow, March 25th.

The Mayor has yet to step down, unlike Beatty who stepped down in early February.

"At every bend and turn, there have been attempts by the city through one lawyer or another to block aspects of our investigation," Worthy said. "Some documents have been turned over, but we have been told that others have been destroyed or lost. We don't know when or by whom."

She said the investigation wasn't about sex, but about destroying the lives and careers of three good cops.

"Gary Brown's, Harold Nelthrope's and Walter Harris' lives and careers were forever changed," Worthy said. "They were ruined financially and their reputations were completely destroyed because they chose to be dutiful police officers."

She added: "Our investigation has clearly shown that public dollars were used, people's lives were ruined, the justice system severely mocked and the public trust trampled on."

Currently The FBI is monitoring the investigation, according to people familiar with the case.

Worthy's investigation began after the Free Press uncovered text messages that showed a romantic relationship between Kilpatrick and Beatty -- a relationship both had denied under oath during a police whistle-blower lawsuit last summer. The pair also gave misleading testimony about the firing of Brown, shown in the text message between the two consenting adults.

Kilpatrick authorized a settlement in that case to pay the former officers $8.4 million. Despite the false testimony, a Wayne County Circuit Court jury last September awarded Brown and Nelthrope $6.5 million in damages. Kilpatrick vowed to appeal, but on Oct. 17, abruptly decided to settle the case and a second police whistle-blower suit involving former mayoral bodyguard Walt Harris for $8.4 million.

Kilpatrick settled after the cops' lawyer, Mike Stefani, informed the mayor's lawyer that he had the incriminating text messages and would reveal them in court papers he planned to file to justify his request for legal fees in the whistle-blower case.

Although Kilpatrick apologized for his conduct in a televised appearance with his wife, Carlita, in late January, he has blamed the media for his troubles and rejected calls from the City Council, Attorney General Mike Cox and city union locals to resign.

So far, Kilpatrick has refused to step down, saying he is on a divinely-inspired mission to help rebuild the city. But conviction of a felony would force him to resign. Currently The FBI is monitoring the investigation, according to people familiar with the case.

Here are the list of charges against the Mayor and former chief:

The charges