Metro

Cuomo team quizzes Paterson aide’s ex to launch probe

ALBANY — Investigators for Attorney General Andrew Cuomo’s Office spent four hours Friday questioning Sherr-una Booker as it kicked off its probe into whether State Police — and possibly Gov. Paterson himself — intervened to quash her domestic-violence case against an administration official.

They asked about the incident last Halloween between Paterson’s top aide, David Johnson, and Booker in the Bronx apartment they shared, according to a person briefed on the investigation. Booker had previously told cops that Johnson choked her, ripped off her clothes and pushed her into a mirror.

Later on Friday, investigators turned the heat on Maj. Charles Day, head of the governor’s security detail, who reportedly contacted Booker the day after the altercation and the day before she complained of State Police pressure in a Bronx Family Court appearance, the source said.

Probers are expected to question a trooper whose access to a police-information network was used to learn whether the Oct. 31 incident led to an NYPD warrant for Johnson’s arrest, the source said.

The trooper is expected to tell investigators that he gave his log-in ID and password to another member of the detail — a violation of protocol.

The Post revealed yesterday that the inquiry will also look at Booker’s purchase of a $40,000 Lexus shortly before she dropped her case.

Cuomo’s office has already subpoenaed NYPD records related to the Halloween incident.