90734
The following month he was cautioned by West Midlands Police regarding the incident , for possessing small amounts of class A drugs ( principally cocaine ) as well as cannabis , a class B drug .
 West Midlands Police
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 West Midlands Police