"Stay off E14 from Fruitvale to 42 tonight," the officer allegedly wrote. "There's a UC [undercover] operation. ... Just giving you a heads up."
From the charges filed Monday:
In the exchange, Bunton, who was identified by the screen name "Superman" told her to stay away from International on a particular night because [there] was a UC operation going on.
Subject, per reporting party, received sex in exchange for the information.
Bunton is also charged with one misdemeanor -- engaging in prostitution.
No current or former officers charged or likely to be charged in Alameda County will face statutory rape allegations, District Attorney Nancy O'Malley said
in early September, but some are being charged with oral copulation with a minor, a felony.
That's the only charge filed against Oakland Officer Giovanni LoVerde Monday. He allegedly started talking with the woman online and told prosecutors he never met her in person.
But prosecutors allege that sometime in July 2015, when the woman was 17 years old, LoVerde met her near Oakland's Lake Merritt and engaged in a sex act with her in the entryway of a apartment.
Former Contra Costa Sheriff's Deputy Ricardo Perez resigned in late June amid the growing scandal. He was charged Monday with felony oral copulation with a minor and two misdemeanor counts of engaging in lewd conduct in a public place.
Perez could have faced many more criminal counts, according to the woman's allegations.
"Subject per victim had sexual intercourse with her about 10 times in an unknown location near Fish Ranch Road in the Oakland Hills when she was 17 years old," according to the declaration of probable cause attached to charges against Perez.
But Perez said that "his first sexual contact with the victim was between 5 to 7 days after 18, August 2015," according to the charging documents -- a range of dates that includes the woman's 18th birthday.
"It appears that the subject engaged in at least one sex act, oral copulation, with the subject when she was 17 years old in a public place," the declaration says, adding that additional sex acts also occurred in a public place.
Alameda prosecutors charged former Livermore Officer Daniel Black and former Oakland Officer Leroy Johnson last week. OPD Officer Warit Utappa and former OPD Officer Tyrell Smith are expected to be formally charged in coming days, bringing the total number of current and former officers charged in Alameda County to seven.
Additional charges could come in neighboring counties, according to O'Malley's comments earlier this month. Investigations remain open in Contra Costa and San Francisco counties.