In the 1980s, he was a co-founder of Street Kids International, an organization that has helped homeless youths around the world find jobs, and which was recently absorbed by Save the Children.
He also partnered with the American professional skateboarder Tony Hawk to empower children through sports, and worked with the United Nations in Liberian shantytowns after the 2014 outbreak of Ebola in West Africa.
But in Nepal, where he has lived off-and-on since 2002, some of those who knew him recalled unsettling requests.
In Kathmandu, Nepal’s capital, at a school which provides free education to children from mountain communities, Mr. Dalglish was a popular volunteer in the early 2000s until he asked administrators to change a rule barring students from staying overnight with teachers.
Soon after, the relationship between the school’s staff members and Mr. Dalglish soured, a senior administrator said, and he was banned from the campus.
In an interview last month with The Globe and Mail, a Canadian newspaper, Mr. Dalglish spoke from behind the bars of a jail cell in Kathmandu, denying the charges against him and pointing out he had never before been the subject of a criminal investigation.
“But obviously, if you do the work that I do, with kids, you leave yourself open to criticism and suspicion,” he said. Mr. Dalglish declined further interview requests.