Jan. 15, 1987: Alphonse G. Hill, former deputy mayor, is indicted for defrauding the D.C. government; he subsequently pleads guilty and is sentenced to prison.

May 22: Federal authorities raid homes and businesses of Marion Barry's friends, Karen Johnson and top city aide David E. Rivers, then unveil wide-ranging probe of city contracting.

May 22: Former city administrator Elijah B. Rogers testifies before grand jury investigating whether Barry used funds from ceremonial account for personal use.

May 28: The Post reports that two pairs of shoes owned by Barry were subpoenaed by a Federal grand jury; mayor denies receiving shoes from contractor Warren E. Barge Jr.

June 17: The Post reports that Johnson is cooperating with prosecutors investigating whether she was paid money in exchange for her refusal to testify in 1984.

June 18: WUSA-TV reports that Johnson told prosecutors that she sold cocaine to Barry 20 to 30 times, and that she has a secret dairy detailing a former sexual relationship with the mayor.

June 20: Barry files a lawsuit accusing U.S. Attorney Joseph E. diGenova of leaking details of the corruption probe to the news media.

June 23: The Post reports that Karen Johnson has told prosecutors that she received $20,000 to $25,000 from contractor John B. Clyburn and others in exchange for her refusal to testify.

July 15: Electronics expert Eddie T. Dockery says he told a federal grand jury that he made electronic sweeps of Barry's home and offices in search of possible bugs or wiretaps. The grand jury is investigating possible obstruction of the corruption probe by Barry associates.

July 24: A federal judge dismisses Barry's suit against diGenova; a day later Barry files a notice of appeal.

Aug. 14: The Post reports that Clyburn and contractor Roy Littlejohn have acknowledged that Clyburn paid money to Johnson and Littlejohn gave money to Clyburn for Johnson, but the two deny it was hush money.

Aug. 18: The Post reports that federal prosecutors attempted to talk to city contractor Herbert Young about how he obtained $41,000 in city business in May after allegedly telling Barry about FBI surveillance of Barry's home.

Aug. 24: The Washington Times reports that the FBI is conducting an internal investigation of possible leaks by clerical employes to Young. Barry later says he received no information and one clerk resigns.

Aug. 27: The Post reports that the FBI, without the knowledge of city officials, is probing alleged D.C. police corruption, including allegations that officers skimmed cash and drugs from raids.

Aug. 30: A Post poll shows that continuing federal investigations have cut into Barry's political support, but that he retains a core of strong backing in the city.

Sept. 1: Barry says he would remain in office even if indicted, responding to a Washington Times report that he was considering resigning under pressure from the probe.

Sept. 5: Records released to the media show that Barry's records for his $17,500 annual ceremonial fund were missing or incomplete. Officials later disclose that two years' worth of records were destroyed "in the normal course of business."

Sept. 9: Barry reports that the aide in charge of the ceremonial fund paid $1,500 on a fur coat bill for Effi Barry. Barry aides indicate the money may have come from the fund, and Barry says he repaid the aide.

Sept. 9: The FBI searches the offices of the 4th Police District vice unit, culminating an undercover probe of alleged drug and cash skimming by narcotics officers.