Dr. Jack Kevorkian has helped 99 people commit suicide but don't ask him to describe each person's life or why they chose to die. There are too many to remember.

"After 99 cases, I can't recall each specific case. I've stopped taking notes on them, because police just confiscate that, too," said Kevorkian, who for years had refused to number the suicides he has attended.Kevorkian met for five minutes Wednesday with investigators at the police department in Bloomfield Township, a Detroit suburb.

Chief Jeffrey Werner said police asked Kevorkian to answer questions about several "unsolved assisted suicides," but he would not elaborate.

"I told them `I did it, I did it,' " Kevorkian said. "If this was any other criminal who went in there and said that, the police would nail them to the wall. They know there's no law" against assisted suicide.

Since Kevorkian, 69, first helped a woman with Alzheimer's disease commit suicide on June 4, 1990, he has been acquitted in three Detroit-area trials covering five deaths. A fourth trial in Ionia County resulted in a mistrial.

Werner said Kevorkian opened himself up to being questioned after the former pathologist stood outside the Oakland County Courthouse last month sporting a cardboard sign that read, "I did it - Why doesn't the corrupt Prosecutor arrest me?"

Kevorkian apparently was referring to the case of Roosevelt Dawson and Oakland County Prosecutor David Gorcyca, who has not charged him in any case.

Dawson, 21, said he wanted to commit suicide a year after a virus paralyzed him from the neck down. Kevorkian has acknowledged his involvement in the Feb. 26 death.

On Tuesday, Kevorkian sued police in the Detroit suburb of Southfield, saying they improperly seized his "euthanasia device" from the apartment where Dawson died. The device consists of needles, syringes, an arm board and electrical cords, Kevorkian said.

Police said Kevorkian's equipment will be held until they receive a toxicological report pinpointing the cause of Dawson's death, and present the findings to prosecutors.