Read the case study at: Roland fined 4 million for illegally preventing online price discounts - Case study - (https://www.gov.uk/government/case-studies/competition-law-case-studies)

(a) Brief summary of the case. (b) What was the key evidence against the cartel members? Where did the evidence come from and how strong was the evidence? (c) Did any cartel member apply for leniency?

(d) Was any expert witness involved in the litigation? What was the experts defense? (e) How much were the fine(s) and how were they determined?