In writing a thesis this, writer discuss review the law number 15 year 2003 on terrorism in a
bid to overcome the offender the criminal act of terrorism in indonesian. The writing of laws
to be done is aimed to know success of the law number 15 year 2003 on terrorism in a bid to
overcome the offender terrorism. The kind of research used in this research is law normative
research that focuses on the norms ( law in the book ) and research this requires data
secondary as data main while data primary as a supporter. A method of collecting data done
with the literature study and interview, a writer of tilling the data in a systematic way by
using the method qualitative analysis and in drawing a conclusion the use writers a method
of deductively. Based on analysis that has been done by the writer so can be concluded that a
verdict inflicted in some cases writer discussed in advance opinion writer is enough as it is
stipulated in the law number 15 year 2003 on eradication criminal act of terrorism. It is seen
from many angles countermeasures, imposition verdict a pretty heavy approaching with
threats his sentence. It has a purpose, either spatially prevention and is convictions. The hope
that can affect deterrent against players terrorism, channeled can hold net terrorism in
indonesia and provision of deserving punishment considering impacts generated by terrorism
very large.