Complex sentence: Within Train Operating Companies, a distinction is made between ticket inspectors and "Revenue Protection Inspectors" or "Authorised Penalty Fare Officers", whereby only the latter have the authority to issue penalty fares where a ticket or Permit is not held.
Split into simpler sentences: Within Train Operating Companies, a distinction is made between ticket inspectors and "Revenue Protection Inspectors" or "Authorised Penalty Fare Officers". Only the latter have the authority to issue penalty fares where a ticket or Permit is not held.