During a joint news conference with ATF Houston, Finner said officers were able to make the arrests during the last week, but they came after a patient investigation of the robberies that each happened mainly back in January.
He explained that four of the suspects were arrested on May 5; two arrested on May 6; and another four arrested on May 9. They were are all allegedly "trigger-pullers" with gang ties and "very violent records."
SURVEILLANCE VIDEO: Robbers take just seconds to target victim outside hotel in May 8 robbery
"It's pretty scary to think that there's people out here trying to get people for their money," Drejoin Ellington said.
While the arrests mark one of the first successes touted under his leadership, Finner mentioned that more of these violent crews are out there.
According to the chief, the suspects are "the types of guys we need to get off the streets to make the city safer," which was the reasoning for the timing of the arrests.
Court documents obtained earlier this week for two arrests believed to be part of Friday's announcement identified five places where unsuspecting victims were robbed. They are the Galleria, the Post Oak Hotel, River Oaks District, PlazAmericas on Bellaire and Johnny Dang & Co. on Richmond Avenue.
"They're identifying their targets different. They're looking at luxury rides, exotic cars in conjunction with flashy, expensive jewelry at high-end shopping districts and expensive restaurants," HPD Commander Tinsley Winshaver said.
SEE MORE: 5 Galleria-area places where Houston police believe you could be followed home and robbed
The robbery ring arrests were made in conjunction with the newly formed ATF Crime Gun Strike Force, which, as 13 Investigates' Ted Oberg reported, uses teamwork and technology that links guns to bullets which can then be linked to crime scenes and shooters.
SEE MORE: 13 Investigates: HPD's technology can detect gunshots down to a home's backyard
Among the high-tech gadgetry mentioned in this collaboration is a pilot ShotSpotter program which detects the sound of gunfire within a five-square-mile area in southeast Houston.
Finner has a message for violent criminals still on the street. "You think that you're preying on our citizens of Houston, and you think you're going to get away with it," he said. "We have task force units and crime suppression units marked and unmarked all over our city right now.
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