Explanation should include

restricting all access to drugs (e.g., receipt, storage, preparation, dispensing, distribution, administration) to authorized personnel only
ensuring that prescription drugs are dispensed only by a licensed pharmacist
making regular physical counts of all inventories (e.g., retail pharmacy, nursing units)
following legal requirements, retail or institutional policies, and professional standards
monitoring implementation of policies and procedures
using tamper-proof labeling and sealing devices.

Process/Skill Questions:

What is the relationship between the prevalence of chemical dependency and medication diversion?
What methods are used to deter theft and/or medication diversion?
What methods are used to report theft and/or medication diversion?