(B) Basis of knowledge.
A local educational agency shall be deemed to have knowledge that a child is a child with a disability if, before the behavior that precipitated the disciplinary action occurred—
(i) the parent of the child has expressed concern in writing to supervisory or administrative personnel of the appropriate educational agency, or a teacher of the child, that the child is in need of special education and related services;
(ii) the parent of the child has requested an evaluation of the child pursuant to section 614(a)(1)(B); or
(iii) the teacher of the child, or other personnel of the local educational agency, has expressed specific concerns about a pattern of behavior demonstrated by the child, directly to the director of special education of such agency or to other supervisory personnel of the agency.
