a. Explain the term Contributory Negligence.

b. Distinguish between Conversion and Detinue.

a. Contributory negligence is a defense in tort where the plaintiff’s own negligence contributed to the harm suffered, reducing or barring damages. Under common law adopted in Ghana (e.g., Donoghue v. Stevenson principles), if a customer sues a bank for negligent advice leading to loss, but the customer ignored warnings, damages are apportioned (Civil Liability Act, 1963 influences). In banking, during cyber fraud cases post-2020 BoG Cyber Directive, if a customer shares PINs, their claim against the bank for unauthorized transactions may be reduced by 50-100% based on fault. This promotes shared responsibility, as in DDEP disputes where investors’ oversight contributed to losses.

b. Distinction between Conversion and Detinue:

Aspect Conversion Detinue
Definition Wrongful interference with another’s chattel by dealing with it as one’s own, e.g., selling or destroying. Wrongful detention of chattels after demand for return.
Nature Act of dominion inconsistent with owner’s rights; immediate wrong. Refusal to return on demand; continuing wrong.
Remedy Damages for value at conversion time; no need for demand. Order for specific return plus damages; requires prior demand.
Banking Example Bank wrongfully pays on forged cheque, converting funds. Bank retains customer’s securities after loan repayment demand.
Legal Basis Common law tort; actionable per se. Common law; focuses on possession right.

In Ghanaian practice, conversion applies to cheque mishandling (Act 55), while detinue to safe custody disputes, emphasizing banks’ duty of care under Act 930.