Claims That Klaas Girl Was Stalked Investigated : Crime: Police and FBI agents are studying videotapes from store security cameras to see if the alleged kidnaper had followed Petaluma girl.

Authorities are investigating the possibility that the man accused of killing 12-year-old Polly Klaas may have stalked her before her abduction, the San Francisco Chronicle reported Thursday.

FBI agents and Petaluma detectives are studying videotapes from security cameras at markets near Polly’s home to see if Richard Allen Davis appears on them. And they have questioned residents who say they saw Davis in parks and at parties in the area in the two months before the crime, the newspaper reported.

If they can prove Davis stalked Polly, it would strengthen prosecutors’ contention that the kidnaping was premeditated, not a compulsive act by someone high on drugs and alcohol, as Davis told his defense attorney he was.

A memorial service for the brown-eyed seventh-grader was scheduled for Thursday night at St. Vincent de Paul Catholic Church in Petaluma. Gov. Pete Wilson and Sen. Dianne Feinstein (D-Calif.) were scheduled to attend.

Sen. Barbara Boxer (D-Calif.), who also was expected to attend the memorial service, met for about an hour Thursday morning with volunteers at the Polly Klaas Foundation, an organization that helped in the two-month search for the girl.

At a news conference afterward, Boxer said she supported the “three strikes and you’re out” proposal, which would toughen sentencing laws for repeat offenders. A movement to place the proposal on the ballot in California has gained momentum since the arrest of Davis, a twice-convicted kidnaper, in the Klaas case.

“There isn’t any way to ease the pain the family is going through,” Boxer said, adding, “We’re going to build something on this tragedy.”

She said, however, that it would be a cruel hoax to impose tougher laws without getting the money to build more prisons to house the criminals.

In another development, Sonoma County Sheriff Mark Ihde told the Santa Rosa Press Democrat that there are indications his dispatchers did not broadcast an all-points bulletin when it first arrived an hour after the girl was reported missing because it was marked “Not for Press Release.”

The suspicion is that it did not go over the regular police radio frequencies because reporters and citizens can monitor those broadcasts, Ihde said.

Marin County and Santa Rosa police chiefs said their dispatchers did not read the bulletin over the normal channels for that reason.

That would explain why the two deputies who questioned Davis that night were unaware of the abduction.

Ihde has said that the two deputies did not know about the kidnaping when they questioned Davis because the all-points bulletin went out on only one channel that only broadcasts to deputies in the Petaluma area.

The deputies conducted a field sobriety test on Davis, checked for arrest warrants o nhim and searched his Ford Pinto an hour after the abduction, when the car ran into a ditch and a neighbor complained about Davis trespassing on her land.

Davis’ defense attorney, Sonoma County Public Defender Marteen Miller, says Davis told him that Polly was alive when he talked with the deputies that night and that he strangled her later and dumped her body in a roadside thicket in Cloverdale.