From "Network News," 30 May 2001:
"Police communications chiefs in Kent (UK) have cuffed undercover coppers from using theme tunes from cop shows as mobile phone rings. As part of Kent Constabulary's communications policy, undercover officers are forbidden fro using tunes from The Bill, The Professionals, The Sweeney and Crimewatch on their mobiles. The top cops fear that criminals will nobble an undercover copper whose phone suddenly rings with a tune from Z-Cars."
British policing at its finest ...