Authorities had not previously disclosed the number of tenants involved.
Daley had installed the cameras -- typically one in the bedroom and one in the bathroom -- in at least 7 apartments he rented to women in Norristown over the last 19 years, Reynolds said.
Daley's sophisticated set-up fed the camera images to a recording system in the basement, and enabling him to view the tapes from his home via the Internet, authorities have said.
He hid the tiny cameras behind mirrors and in cabinets and ceiling fans, and some turned on with the flip of a light switch, they said.
Defense lawyer Timothy Woodward did not immediately return a message Friday from The Associated Press.
The investigation began after a tenant discovered a camera this year and contacted police, leading to Daley's arrest Sept. 19 on charges including wiretapping and invasion of privacy. Detectives have since searched his other apartments and recovered videotapes, records and evidence that led to new charges Friday involving 34 current and former tenants.
The charges being added Friday include 34 counts of invasion of privacy, 14 wiretap counts based on 14 audio devices found, and two counts each of burglary and evidence tampering, based on his alleged attempt to break into two apartments and remove cameras after he learned of the probe, Reynolds said.
Daley has been in prison on $1 million cash bail since his arrest, but was being arraigned in court Friday on the new charges. He is expected to waive his right to a preliminary hearing, Reynolds said.
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