RAC comments on drug-driving story from the Institute of Advanced Motorists (IAM)

RAC spokesman Simon Williams said: "Although it is too early to identify any trends in the number of arrests made as a result of the new drug driving offence, this snapshot provides a useful early indication of how the law is being enforced.

"The key now is ensuring enforcement can keep up with a problem that the Government has accepted represents a growing road safety risk. The RAC has previously flagged the dramatic 23% drop in the numbers of full-time traffic officers since 2010 affecting many constabularies - so only time will tell if the resources are in place to effectively tackle what some reports suggest is a bigger problem than drink-driving."