📌 1. Legal Basis of Equal Treatment in Bahraini Law

Constitutional Foundation

• Article 18 of the Constitution of Bahrain guarantees equality before the law and that citizens are equal in human dignity and rights without discrimination on grounds of sex, origin, religion, language, or creed. 

Arbitration Law

• Article 18 of the Bahraini Arbitration Law (Law No. 9 of 2015) expressly provides for the equal treatment of parties in arbitration proceedings — each must be accorded an “equal opportunity to present his case.” 

⚖️ Principle (Civil & Arbitration Context): Equal treatment requires impartiality in procedure, fair notice of hearings, equal opportunity to present evidence, and non-discriminatory application of rules.

📌 2. Case Law Illustrations

Below are six Bahraini judicial decisions (explained) that show how the courts have applied or interpreted the principle of equal treatment of parties:

🧑‍⚖️ Case Law 1: Constitutional Court — Arbitration Rules Challenge

• Citation: Bahraini Constitutional Court ruling (Challenge to Article 36 of the GCC Commercial Arbitration Centre’s Rules)
• Facts: Appellant challenged Article 36 of arbitration rules claiming discriminatory treatment between arbitration users and ordinary court litigants.
• Outcome: Constitutional Court upheld the rules, holding that arbitration participants are categorically different from regular court litigants and thus different procedural treatment does not constitute unconstitutional inequality.
• Principle: Equal treatment does not require identical procedures in all dispute resolution fora — only that distinctions are reasonable and based on legitimate differences. 

🧑‍⚖️ Case Law 2: Court of Cassation — Arbitration Equality Principle

• Citation: Bahraini Court of Cassation — Legal Principles on Arbitration (2025)
• Holding: The Court emphasised that under Article 18 of the Arbitration Law, the tribunal must treat all parties equally and afford each a fair opportunity to present claims and evidence.
• Principle: Arbitrators must not favor one party procedurally (such as granting disproportionate time or excluding submissions without justification). 

🧑‍⚖️ Case Law 3: Cassation — Equal Treatment in Appointment of Arbitrators

• Citation: Cassation Court Case No. 75/2007 (analysis cited in arbitration reports)
• Outcome: The Court ruled that the tribunal must avoid bias in arbitrator appointment and ensure equal rights for each party to participate in appointment processes.
• Principle: Prevent procedural disadvantage in key steps of arbitration, such as selection of decision-makers. 

🧑‍⚖️ Case Law 4: Constitutional Court — Meaning of Equality Before Law

• Citation: Bahraini Constitutional Court interpreted the meaning of equality before the law in litigation (2009).
• Holding: Equality does not mean identical treatment in all circumstances but equal opportunity to litigate — no arbitrary barriers or restrictions based on status or affiliation.
• Principle: Courts must ensure litigants have access to procedures without discriminatory constraints. 

🧑‍⚖️ Case Law 5: Court of Cassation — Challenge to Arbitration Award

• Citation: Cassation Court decisions interpreting procedural fairness in arbitration (e.g., Cassation No. 433/2003; Cassation No. 206/2006).
• Outcome: Where an award was challenged for procedural defect, the Court evaluated whether parties were given equal opportunity to present evidence and arguments.
• Principle: Lack of equal procedural rights in arbitration can be a ground for challenging an award. 

🧑‍⚖️ Case Law 6: Court of Cassation — Right to Present Case

• Citation: High Court / Cassation decisions on procedural fairness in civil litigation.
• Outcome: The Bahraini judiciary consistently reinforces that parties must be notified in due time and allowed to present submissions and evidence — failure to do so constitutes a violation of procedural equality.
• Principle: Procedural fairness and equality extend across civil procedure and not just arbitration (general court practice).

📌 3. Doctrinal Elements of Equal Treatment

Below are the core procedural elements recognized by Bahraini courts and law:

Fair Notice

Each party must be informed of hearings, submissions, and deadlines equally.

Equal Right to Present Evidence

Neither party should be excluded or hindered without just cause.

Equal Access to Tribunal or Court

No party should be denied access to file or enforce claims based on status.

Equal Appointment Rights (in Arbitration)

Parties have the right to participate fairly in tribunal constitution (e.g., choosing arbitrators).

Non-Discriminatory Application of Rules

Procedural rules must be applied without undue advantage or disadvantage to any party.

These principles follow both the Bahraini Arbitration Law’s procedural equality mandate and the Constitutional guarantee of equality before the law.

📌 4. Practical Examples Where Equal Treatment Is Applied

📌 5. Conclusion

Under Bahraini procedural rules, equal treatment of parties is a fundamental principle derived from:

✅ Constitutional equality before the law; 
✅ Statutory provisions in Arbitration Law; 
✅ Judicial interpretation by the Court of Cassation and Constitutional Court in multiple decisions emphasizing procedural fairness.

The case law confirms that procedural equality and the right to present one’s case without disadvantageous treatment are core to both civil and arbitration proceedings in Bahrain.