LEGAL PRINCIPLE: CIVIL PROCEDURE – Res Judicata – Issue Estoppel – Distinction Between Cause of Action Estoppel and Issue Estoppel
PRINCIPLE STATEMENT
For cause of action estoppel to arise the cause of action in the latter proceedings must be identical with the cause of action in the earlier proceedings. When a defence of cause of action estoppel is raised the defence connotes that the legal rights and obligations of the parties in respect of the subject-matter of the action are conclusively or deemed to have been conclusively determined by the earlier action. Cause of action estoppel requires identity not only of subject matter but also of parties and issues in the latter and earlier proceedings. However, where a plea of cause of action estoppel cannot be raised because the causes of action in the two proceedings are not the same, a party can still plead that the other party is precluded from contending the contrary of any precise point; provided that the point in question (i) has been distinctly put in issue and (ii) has been necessarily determined directly and with certainty in the first action.
RATIO DECIDENDI (SOURCE)
Per Ayoola, JSC, in Ikeni & Anor v. Efamo & Ors (2001) NLC-991997(SC) at pp. 3–4; Paras D–A.
"For cause of action estoppel to arise the cause of action in the latter proceedings must be identical with the cause of action in the earlier proceedings. When a defence of cause of action estoppel is raised the defence connotes that the legal rights and obligations of the parties in respect of the subject-matter of the action are conclusively or deemed to have been conclusively determined by the earlier action. Cause of action estoppel requires identity not only of subject matter but also of parties and issues in the latter and earlier proceedings. However, where a plea of cause of action estoppel cannot be raised because the causes of action in the two proceedings are not the same, a party can still plead that the other party is precluded from contending the contrary of any precise point; provided that the point in question (i) has been distinctly put in issue and (ii) has been necessarily determined directly and with certainty in the first action."
EXPLANATION / SCOPE
Cause of action estoppel requires identical causes of action—same subject matter, parties, and issues. It bars re-litigation of the entire claim. Issue estoppel applies where causes of action differ but a specific issue has been distinctly put in issue and necessarily determined in the first action. Issue estoppel prevents re-litigation of that precise point. The distinction is important: a party may fail on cause of action estoppel but succeed on issue estoppel. Issue estoppel operates on individual findings, not the whole claim. Both require final judgment by a competent court. The principle prevents endless litigation while recognising that different legal claims may share common factual issues.
