Did Michael Gerber, the Deputy Commissioner of Legal Matters, commit the crime of perjury by signing a document asserting he had authority which clearly he did

Did Michael Gerber, the Deputy Commissioner of Legal Matters, commit the crime of perjury by signing a document asserting he had authority which clearly he did not? It's also odd that the PDF redacted the name of Michael Gerber, the Deputy Commissioner of Legal Matters, when the NYPD issued a press announcement naming him (https://www.publicnow.com/view/A505A75813F7F2F483905D075F4ADB049B1C9F1F https://www.publicnow.com/view/A505A75813F7F2F483905D075F4AD...) and tout him on their public website (https://www.nyc.gov/site/nypd/bureaus/administrative/legal.page https://www.nyc.gov/site/nypd/bureaus/administrative/legal.p...) It seems that either Michael Gerber, the NYPD Deputy Commissioner of Legal Matters, is clueless about the law, which reflects poorly on his Harvard Law alma matter, or Michael Gerber, the NYPD Deputy Commissioner of Legal Matters, was illegally using threats and coercion and false subpoenas to investigate political opponents and chill free speech. Either way, this does not reflect well on Michael Gerber, the NYPD Deputy Commissioner of Legal Matters, nor the Harvard Law school from which he allegedly graduated.