He’s back.

Christopher Barclay returned to Diamond Head State Monument to sell certificates to tourists today, just one day after state authorities cited him for unauthorized commercial activity atop the summit.

DLNR said it’s alleged that Barclay “solicited business by setting up a vendor station” and offering $5 certificates to people “who’d successfully ascended Diamond Head crater.”

Because Barclay’s history with DLNR includes several related cases, law enforcement officials suspected that he might return to Diamond Head State Monument, state officials said.

“This individual was extremely argumentative when cited yesterday and despite previous citations he’s continued to thumb his nose at the law,” DLNR State Parks Division Administrator Curt Cottrell said.

Barclay could not be reached for comment.

According to DLNR, Barclay was arrested at 9 a.m. today as he was starting to hike back up the mountain. Officers from the Department of Land and Natural Resources Division of Conservation and Resources Enforcement arrested him on a 2015 bench warrant. The warrant was issued after Barclay failed to appear in court to answer an earlier charge of soliciting and sales on DLNR land.

Barclay was booked by the Honolulu Police Department. Since Barclay was cited by DOCARE for a criminal violation of state rules, he will have to appear in Honolulu District Court. The criminal penalty for violating state park rules is a petty misdemeanor. Violators can face up to 30 days’ imprisonment and fines.