Jakarta, Indonesia
Natosmal & Bhatara Advocates
A Jakarta law firm built on public law scholarship and courtroom practice. We act for clients whose matters turn on constitutional questions, criminal exposure, regulatory pressure and the rule of law.
- Established in Jakarta
- 2025Established in Jakarta
- Founding partners
- 2Founding partners
- Practice areas
- 8Practice areas
- Working languages
- EN / IDWorking languages
The firm
Counsel for matters where the law is genuinely contested
Natosmal & Bhatara Advocates was established in Jakarta in 2025 by Erwin Natosmal Oemar and Bhatara Ibnu Reza. Both partners came to private practice from a different route than most: years of legal research, policy reform work and public interest litigation before Indonesia's courts and constitutional institutions.
That background shapes how we work. We take on matters where the governing rule is unsettled, where the facts are politically sensitive, or where a client needs an argument built from first principles rather than pulled from a precedent bank.
Expertise
Where we practise
Eight areas, connected by a common thread: the exercise of public power and the limits the law places on it.
- 01
Anti-Corruption & White-Collar Crime
Representation and advice in corruption investigations and prosecutions, and for organisations managing corruption risk.
- 02
Criminal Litigation & Defence
Defence at every stage of the criminal process, from first questioning through appeal and judicial review.
- 03
Constitutional & Administrative Law
Challenges to statutes and state action before the Constitutional Court and the administrative courts.
- 04
Human Rights & Public Interest Litigation
Acting for individuals and organisations in matters engaging fundamental rights and the public interest.
- 05
Legal Policy & Judicial Reform Advisory
Legislative drafting support, legal policy analysis and reform advisory for institutions and civil society.
- 06
Public International & Humanitarian Law
Advice on Indonesia's international obligations, the law of armed conflict, and the legal framework of the security sector.
- 07
Commercial Disputes & Arbitration
Civil and commercial dispute resolution before the Indonesian courts and in arbitration.
- 08
Corporate Governance & Regulatory Compliance
Advisory work for companies and organisations operating under regulatory scrutiny.
Our people
The founding partners
A litigator-researcher and an academic-practitioner, both with long records in Indonesia's legal reform and human rights community.
How we work
Three commitments we hold to on every matter
Research-led argument
Every position we advance is built on primary sources — statutes, travaux, comparative authority and the court's own reasoning. We would rather find the argument nobody has made than repeat one that has already failed.
Candid assessment
You will hear our honest reading of your prospects at the outset, including when the answer is that litigation is the wrong instrument. Clients make better decisions when counsel is willing to say so.
Partner-led throughout
The partners who take your instructions are the ones who draft the submissions and appear in the hearing. Matters are not passed down once the engagement is signed.
Bring us the question that does not have an easy answer
Initial consultations are confidential and without obligation. Tell us what you are facing and we will tell you plainly whether we are the right firm for it.
Contact the firm