Establishing and enforcing dress codes is the right of the bar owner, and there are as many establishments without dress codes as those with, Greco said.
"There are other options for people if they don't want to go to a place with a dress code," he said.
Dress codes that include no baggy pants, no camouflage, no backward baseball caps and hooded sweatshirts can help to create an appropriate atmosphere, said Scott Miller, owner of Bar 101 on Capitol Street.
"I think the way you dress influences the way you act," Miller said.
Miller has had a dress code in place ever since he took over his bar about eight years ago, he said. However, he does not post the policy until the weekends when more people frequent the establishment, he said.
Miller is adamant about running an establishment where problems like fights do not occur, he said. He has recently added a DJ to play music on Friday and Saturday nights to encourage people to stay longer.
"I want to have a place where people can come and feel safe and have a good time," he said. "People come here because they know there isn't going to be any trouble."
Although the dress code might raise eyebrows for some, he said it is not geared at any specific demographic, and he was quick to point out that young men and women from all ethnicities wear baggy pants, hooded sweatshirts and backward baseball caps.
"I see all kinds of people wearing that stuff," he said.
Miller said he wants to attract people who would come to Ichiban, the next-door Asian-style restaurant, to drink at 101. Miller owns both Bar 101 and Ichiban.
"I'm a restaurant guy," he said.
Miller also said he did not know why the dance club further down Capitol Street had problems.
"We do what we do to keep our place safe," he said.