DALLAS — In the aftermath of the police shooting in Ferguson, Mo., some police departments are renewing efforts to reach out to black communities to build trust — holding public meetings, fielding questions and letting people voice the anger they feel toward officers who patrol their neighborhoods.

Dallas Police Chief David Brown considers it a preventive step.

“I’d much rather they shout at me at a town hall meeting at a church and get to know me afterward than not have a relationship,” Brown said. After a police shooting has already happened, “it’s too late to try to establish relationships.”

Dallas has had 13 police shootings so far this year, leading to eight deaths. That follows last year’s tally of 22 shootings and six deaths, according to police.

To reassure the public, Dallas County District Attorney Craig Watkins recently announced he would begin sending two prosecutors to independently investigate each police shooting.

Both Brown and Watkins are black and grew up in Dallas. Watkins described his own mistrust of law enforcement as a young man and said more needs to be done to restore public confidence in law-enforcement agencies, particularly among blacks and Latinos.

“This is a reality that we deal with in this country,” Watkins said. “And until we face it, we’re always going to have issues like Ferguson. I don’t want to have the same thing happen here.”

Two Dallas officers were recently fired and indicted for separate shootings of civilians.

To address the issue, the department is running a pilot program for body cameras and buying more Tasers to give officers a less-deadly option to subdue attackers, Brown said.

The fraught relationship between police and black residents was evident last week when a group of black protesters marched through south Dallas chanting the name of Michael Brown, the unarmed 18-year-old shot to death by a Ferguson officer.

The group calls itself the Huey P. Newton Gun Club, after one of the co-founders of the Black Panthers. About 30 people carried signs and long guns, which are permitted in most public places in Texas. Several protesters said their concerns went beyond Ferguson.

“A lot of people today are talking about Mike Brown,” one of the group’s organizers, Charles Goodson, told Dallas television station WFAA. “Mike Brown is not an isolated incident. We have many Mike Browns in the city of Dallas.”

At a town hall meeting, the mother of a Dallas man killed by police confronted top law enforcement officials about what they were doing to protect civilian lives.

In Nashville, Police Chief Steve Anderson and several other law-enforcement and political leaders were part of a meeting last week that drew several hundred people, most of them black, to a Baptist church. Kansas City, Mo., police have also begun a series of community forums where residents can meet with officers.

When a man died last month after being placed in a chokehold by officers on Staten Island, New York police moved quickly to contact community activists and Eric Garner’s family, avoiding much of the unrest that affected Ferguson.