How many violation of laws are there where no arrest has been made?
"The violation of laws " is the description of incidents; no arrest has been made refers to arrest = 'FALSE'
SELECT SUM(CASE WHEN T1.description LIKE '%The violation of laws%' THEN 1 ELSE 0 END) FROM FBI_Code AS T1 INNER JOIN Crime AS T2 ON T1.fbi_code_no = T2.fbi_code_no WHERE T2.Arrest = 'FALSE'