12:05 a.m.--Roll call for the graveyard shift, on duty until 8 a.m., is convened in the basement of the Harvard police station at 29 Garden St. Officers who worked the afternoon prepare to head home. Three patrolmen arriving on-duty hear a rundown of the day's and night's incidents. A special weekend "power" shift helps to cover the territory during the switchover.

A message posted in the roll call room reads: "Summer uniforms as of Sunday 28 May 1989"--even now, after midnight, balmy weather makes the winter uniforms a difficult burden to bear. A lieutenant, as the graveyard-shift officers get ready to roll, gives the warning, "Let's be careful out there!"

12:56 a.m.--A freshperson in Hollis Hall is injured after putting his arm through a window. A Harvard cruiser responds and transports him to UHS.

12:58 a.m.--The Harvard police car patrolling the Business School reports a water hazard caused by a broken underground pipe. A puddle several feet deep has formed and the officer estimates the water is flowing out at a rate of about 25 gallons a minute.

1:12 a.m.--The leak unexplainedly stops. It appears that the pipe is connected to a sprinkler system run by a timer. An engineer will respond to correct the problem.

1:37 a.m.--Several pieces of abandoned wicker furniture are reported outside Pier 1 I Imports on Eliot St. Cambridge police find several hundred dollars-worth of furniture outside the store. An officer speculates the objects are sale items put outside during the day and forgotten. The manager is responding to lock up the "sidewalk sale" merchandise, the officer says.

2:04 a.m.--A woman calls HUPD to report that her car is locked in the Broadway garage. Police respond, unlock the gate and escort the woman to her car. She is a member of the Newton Choral Society participating in a recital on campus. She had met a friend afterwards, who had kept her past the garage's 11:45 p.m. closing time, she says.

2:55 a.m.--Harvard police receive a report that people are sleeping outside of Canaday Hall. "They do that every year," a veteran officer tells those responding to the call. The situation is checked out and the six students are left undisturbed on the Canaday lawn.