Definition: In this task, you need to generate an appropriate title for the given summary of some paragraph. The generated title must be short and should include the main topic of the given text. Your summary should be less than 20 words long.
Input: At least 40 motorists convicted of drug-driving offences have been cleared after evidence of manipulation was found in the forensic testing process.

Randox forensics inquiry: Forty drug-driving offences quashed