Ngeh is required to make a statement at the Ipoh District Police Headquarters and he has until Thursday to do so, said Perak police chief Datuk Zulkifli Abdullah.
He said the notice was served on Ngeh today.
The police had started investigations into the allegation last Thursday following two reports lodged against Ngeh by the public, Zulkifli told reporters after holding a dialogue with villagers in Buntung here today.
The police had recorded statements from five persons, including the complainants and reporters, he said, adding that the case was investigated under the Sedition Act 1948.
Ngeh, who is Sitiawan assemblyman, was said to have uttered the words when he protested against the presence of policemen at the state secretariat during the proceedings on March 30.