As Boston police prepare to go into some of the city's most dangerous neighborhoods, knock on doors of private houses, and ask if they can search for illegal guns without a warrant, officials are trying to pitch the idea of the plan as friendly cooperation to residents who still see it as a threatening intrusion.

A friendly looking logo - a drawing of a house surrounded by the sun - adorns the brochure police have drafted to explain and promote the initiative, "Safe Homes." Photos of officers playing baseball with children and chatting with teenagers dot the pamphlet. Twice, police have taken calls from listeners on a black radio station in Roxbury.

By the time they start going door to door next month, police hope they will have reassured clergy, neighborhood leaders, and parents who still see the program as a way to violate the privacy of residents in neighborhoods with a large population of minority-group members and and immigrants.

"There is a big trust issue," said Deputy Superintendent Gary French, who will oversee the Safe Homes program. "I think a lot of people think there's going to be some kind of behind-the-scenes hook to this, and there really isn't. The reality of it is it's strictly a program aimed at getting guns out of the hands of juveniles."

Police plan to search for weapons in four Dorchester and Roxbury neighborhoods by late February or early March. Relying on the tips from schools, community organizations, and parents, they will look in the rooms of any children whose parents or guardians give consent to the search, French said. (The program does not apply to anyone over 18, because they are legally adults and parents can no longer give consent to a search of their rooms.)

Ten officers and a sergeant assigned to the city's schools have been trained to conduct the searches. Most of them speak a second tongue, Spanish or Cape Verdean Creole.

To further put residents at ease, officers will wear civilian clothes and try to look like office workers on casual Friday rather than FBI agents, French said. "They won't go in there in a three-piece suit."

Since announcing the initiative in November, police have held several community meetings about the program and developed an advisory council of religious and community leaders. They suggested that the brochures make clear that residents do not have to consent to the search, and they urged that ministers or social workers accompany police during searches, French said.

Some clergy members have apparently volunteered to accompany police on the searches because they are suspicious of their intent.

"My belief is there are ministers that will do it as part of their ministry because they want to make sure police don't overstep their boundaries," said the Rev. David Wright, executive director of the Black Ministerial Alliance, whose board has not decided whether to endorse the program. "And I think that's a valid point."