The Treasury could pocket 20 million a year in extra fines once the country‘s speed camera network is expanded. Motoring organizations warned that the __1__could become a poll tax on wheels’，__2__huge number of drivers. There could be many more incidents of vandalism __3__cameras.The warnings came__4__a Daily Mail survey found almost all the 23 police forces in England and Wales were either__5__to expansion plans or considering __6__.
Nationwide，the number of speeding tickets is expected to treble，__7__ 90 million a year.__8__the scheme，police keep some of the cash from fines to __9__the costs of fitting and maintaining extra cameras and__10__that existing ones always have film in them. The rest will go to the Treasury. Both Ministers and police insist the scheme is aimed__11__at making roads safer. They point to trials in eight areas which cut collisions by a quarter and deaths and serious injuries by __12__a half.
But motoring organizations fear cameras will be sited on relatively safe__13__fast stretches to catch as many drivers as possible. Some forces are also expected to__14__the“threshold”speeds at which cameras are__15__to the absolute legal minimum-15 mph in a 10 mph limit，and 26 mph in a 20 mph zone. This could encourage drivers to stare at their speedometers instead of concentrating on the road，and __16__to more accidents. Sue Nicholson，head of campaigns at the RAC，said，“We don‘t have a problem with speed cameras __17__. But we do have concerns about__18__they are sited. Police risk losing credibility __19__motorists if cameras are seen as revenue-raising __20__safety devices.”