Bukit Aman CID deputy director Deputy Comm Mior Faridalathrash Wahid said they included the author, editor and publisher of the book.
"We have already received a report on the matter.
"We will investigate and call up the relevant parties, including the author and publisher," he said when contacted Monday (June 29).
On Sunday (June 28), Umno Youth chief Datuk Dr Asyraf Wajdi Dasuki urged the Home Ministry to take action against the author, publisher and editor of the book for insulting the Jata Negara.
In a Facebook post, Asyraf said the book, "Rebirth: Reformasi, Resistance, And Hope In New Malaysia” should be banned.
The image on the book cover bears a resemblance to the national coat of arms, and features a naked child flanked by two tigers with humanoid faces stepping on a crocodile.
"The cover of the book clearly showed the author's disrespect for the dignity of the coat of arms.
"Stern action should be taken if there was an intention to insult the nation's official symbol," he said.
Many people online have also called for action as the cover of the book insulted the constitution and Rukunegara.
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