Introduction
The Affidavit of Good Moral Conduct is a character reference sworn under oath, attesting to an individual's behavior, integrity, and lack of criminal record.

Unlike other affidavits which are self-declaratory, this is often sworn by a guarantor, a parent, or a person of standing (like a Cleric or Justice of the Peace) on behalf of the applicant.

Usage
This affidavit is a standard requirement for admission into military or paramilitary organizations (Police, Army, Customs), the Nigerian Law School, or when applying for certain visas and sensitive job positions.

It serves as a preliminary background check where a reputable person vouches for the applicant.

Legal Liability
The person swearing this affidavit takes a significant risk; if the applicant is later found to have a hidden criminal past or engages in misconduct, the deponent can be held liable for misleading the court or the institution.

Therefore, it typically includes clauses stating that the guarantor has known the person for a long time and can confidently vouch for their law-abiding nature.