Acton High School could face a protest this month after six students were permanently excluded.
Community leader Abukar Awale told the Ealing Gazette said the students were excluded following an allegation that a teenager had a knife on the school grounds last November.
Mr Awale said that when the pupil was confronted by staff, no knife was found.
He added: "We understand the concerns of teachers and we understand that they wish to protect both themselves and young people at the school but we still feel they have reacted unfairly. We are taking part in this protest because there is anger among some parents at how their children have been treated.
"At the end of the day all we are asking for is respect and we don't feel like the students have been treated repectfully. There has to be co-operation and respect between a school and its community."
Parents are said to be considering staging a protest outside the school on January 27 at 9am.
Dr Andy Sievewright, head teacher at Acton High School said: "The safety and welfare of all our students and staff is our priority and thankfully serious incidents of this nature are extremely rare. It is, however school policy that students who are involved in such dangerous behaviour risk permanent exclusion.
"Such a serious decision is given careful consideration by the school's governors and parents can request an independent review of that decision. As the student concerned lives outside the borough, his local authority is responsible for ensuring that full-time education provision is made for all permanently excluded students."
He said that the school will be inviting concerned parents to a meeting next week to discuss pupils progress and achievements and reassure them that it has the safety and interests of all its students at heart. And he added that twenty-four students were interviewed as part of the school’s painstaking investigation into the incident.
Six boys have been permanently excluded as the result of the investigation involving the police liaison officer attached to the school and a number of senior staff. During the investigation, the excluded students signed statements admitting behaviour serious enough to lead to exclusion.