NKRUMAH v. FOLI AND ANOTHER False imprisonment—Arrest by police—Complaint by victim of  offence—Direction or authorisation—Report to police of assault by plaintiff and her daughters—Plaintiff and daughters arrested by police and detained—Subsequent prosecution ending in acquittal of plaintiff and conviction of daughters—Whether complainant liable for arrest of plaintiff by police—Circumstances under which complainants to be held liable for causing arrest—Whether fact of acquittal relevant in determining lawfulness or otherwise of arrest and detention.