Republic Act No. 4661

: The main purpose of Republic Act No. 4661 is to shorten the prescriptive period for libel and other similar offenses by amending Article 90 of the Revised Penal Code.
: The prescriptive period for crimes punishable by death, reclusion perpetua, or reclusion temporal is twenty years.
: Crimes punishable by other afflictive penalties prescribe in fifteen years.
: Crimes punishable by a correctional penalty prescribe in ten years, except those punishable by arresto mayor, which prescribe in five years.
: The crime of libel or other similar offenses prescribes in one year.
: The offenses of oral defamation and slander by deed prescribe in six months.
: Light offenses prescribe in two months.
: When the penalty fixed by law is compound, the highest penalty is used as the basis for applying the prescriptive period rules.
: No, the provisions of this amendatory Act do not apply to cases of libel already filed in court at the time of approval of the Act.
: Republic Act No. 4661 took effect upon its approval on June 18, 1966.