An Alameda County Sheriff's deputy on administrative leave in connection with allegations of breaking into county buildings and illegally acquiring information pleaded not guilty on Tuesday.

Ryan Silcocks, 39, appeared in court with his attorney to enter pleas on two misdemeanor charges, for illegally accessing records and for illegally furnishing information.

On Jan. 15, court records state "Silcocks entered a closed Alameda County building after hours and accessed the county database." Court records show he searched for two names then, but on Jan. 17, entered a building and accessed three names.

He sent the information he received Jan. 17 to Lesley Regina, a San Ramon family law attorney on Jan. 23, then entered a building a third time accessed information on a sixth person, and texted that information to Regina, according to court documents.

Regina, 36, pleaded not guilty to related charges last week.

"On Jan 23, the suspect, Lesley Regina, was emailed confidential/personal information regarding a person she was actively investigating in a domestic violence/child custody matter," a police summary says. That included driver's license information, restraining order information from the National Crime Information Center run by the FBI, and local criminal history from the Alameda County database.

The information "contained specific confidential/personal identifying information that originated in a criminal history/booking system regarding the victim," court records show. The records were for the ex-husband of one of Regina's clients.

Silcocks and Regina are due back in court Aug. 28.

Brian Lancaster of Pleasanton said his name was among those and the information has been used against him in a custody battle.

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