Fraud Squad:

1946 - founded in London to tackle business and stock market crime
Police officers were experts in finance and business; tackled crimes with high-value sums of money
Known today as the Specialist, Organised and Economic Crime Command

Specialist Drug-Trade Units:

1971 - Misuse of Drugs Act made substances (heroin, cocaine, cannabis) criminal offences to possess
Special operation units tackle drug crimes in this manner:
- Preventing and disrupting criminal organisation and activity
- Watching known drug users
Nation Crime Agency (2013) fights drug-trafficking into Britain and drug production within the country too
Uses gathered intelligence to stop and disrupt drug smuggling networks
All local police forces have units to deal with drug storage and supplies by criminals