Fellow beachgoer Alexis Hewitt, 19, captured on video multiple uniformed Wildwood Police Department officers attempting to subdue the woman. The footage was posted online Saturday at around 4 p.m.
Later identified as Emily Weinman, she can be seen in the video flailing her arms and legs in a one-piece black swimsuit and jean shorts.
The two cops, who were fit with body cameras, wrestled the 20-year-old from Philadelphia to the sand and one can be seen throwing three punches with his right fist down onto her head, while another pins her legs.
Numerous beachgoers circling the melee can be heard repeatedly warning Weinman, "Stop resisting."
Weinman was charged with aggravated assault on a police officer, aggravated assault by spitting bodily fluids at/on a police officer, disorderly conduct, resisting arrest, obstruction, and possession of alcohol by a minor.
The officers in the video remain unidentified and were put on restrictive duty while the matter is being internally investigated, police officials confirmed.
But the mayor said the hiring of the officers and their sweeps along the beach were part of a coordinated effort to deal with the swelling crowds and to crack down on illicit drinking.
"There's hundreds of tickets written for illegal drinking on the beach," Troiano said. "It's blatant and out in the open."
He said that the idea that people think they can bend the rules in Wildwood is wrong.
“Wildwood has always taken a hit as ‘this is Wildwood, so anything goes.’ That is the perception that many are putting out there and we don’t want people to have that perception," he said. "Are we wrong to say that underage drinking, which is quite rampant at times is OK? You do stuff that’s wrong, you get locked up or you don’t and instead get in an accident or drown in a pool or drown in the ocean or run over somebody -- are we supposed to tell people that it is OK to do that in Wildwood?”
He noted that the law must be respected.
“We have rules and regulations that we have to follow," he said. "We don’t make the rules, but we have to enforce the rules, especially when we have hundreds of thousands of people on the beach. And just because this woman did something wrong why is it that we should lessen our restriction on enforcing the law?”
The mayor believes the incident could have been avoided if Weinman had only complied to show her identification.
“The bottom line is the officers made a request for her ID," he said. "She took a position, ‘I’m not giving you the ID.' They were going to walk away, but then she started saying, ‘You have nothing better to do and blah-blah.'”
Even if Weinman wasn't intoxicated, she had no right to "kick" or "spit" on the officers, he said.
"All she had to do was give her ID and this would have been a non-entity," he added.
Troiano also praised the training of the cops, who are "class II, special part-time police officers" hired on for the summer months to deal with heavy tourism.
“These officers are trained," he assured, noting that they undergo a rigorous 26-week "live-in" boot camp training at Cape May County Police Academy.
"They go through a military type police boot camp," he explained. "It’s not like it was in the past where ‘You want a job as a cop? Here’s a baton, gun, and uniform and now go out on patrol. These guys are trained.”
Wildwood Police Chief Robert Regalbuto also backed his seasonal officers' training in an interview with ABC News Monday.
"We hire a lot of officers that help us out in the summertime," Regalbuto said. "They might not have as much experience as some of the other guys, [but] we do our best with those officers, we do our best to train them properly.
"If there are areas where we can make improvements, we're going to make improvements."
Regalbuto acknowledged to ABC-owned station WPVI-TV in Philadelphia that investigators are still piecing together what happened before Hewitt started recording the arrest.
"There's more to the story," he told WPVI-TV, adding that more information would help balance the story once the body camera footage gets released. "You have to see the entire videos."
The body camera footage remains under scrutiny by the Cape May County Prosecutor's Office and won't be released until they complete their probe.
"Once the initial investigation is completed by the Wildwood Police Department's Internal Affairs Unit, the police video will be released to the general public and a more formal statement will be made by our office," Cape May Prosecutor Jeffrey H. Sutherland said in a statement.
Boyce said he'd like to see more footage before the blows, but from the outset, it "looked like excessive force" because “the subject was on the ground with two officers subduing her.”
Police officers are trained to sometimes use "submission blows," Boyce said, but if that is the case with the Wildwood cop “this is a mistake if he indeed was trained that way.”
"The correct amount is the least force necessary," Boyce said.
Punches should only be thrown "when you're under attack in a situation or someone is attacking and punching you," he said.
With Weinman's arrest, the video shows she was already on the sand and so punches likely could have been excessive.
However, not every law enforcement officer can remain perfectly composed in every scenario, according to Boyce.
"When you're in a situation, you're hyped up and adrenaline is flowing," he explained.
John Cohen, an ABC News contributor and former U.S. counterterrorism coordinator for the Department of Homeland Security, said that he also viewed the video of the arrest and said it's important to refrain from making too quick a judgment before "all the information is available."
Any arrest, no matter the size or gender, is difficult if the person resists, Cohen explained.
"From experience, I can tell you whether it involves a 240-pound man or a 110-pound woman -- it is very difficult to place somebody in handcuffs who doesn’t want to be in handcuffs or is battling the officer," he said.
He added that the internal investigation into how the arrest escalated into a melee will zero in on an array of factors, including what transpired before Weinman was punched, if the force applied was warranted, and were the cops properly trained.
"Did the officers use a reasonable amount of force based on the threat they were confronting," he said. "That's what they're going to look at."
ABC News' Ben Stein contributed to this report.