A team set up to deal with anti-social behaviour in Birmingham is receiving 12,000 calls a year from the public.
The pressure of work on the city council's antisocial behaviour unit is so great that it is to undergo a £1 million restructuring and grow by 50 per cent.
The council cabinet will back a report by chief executive Lin Homer setting out the case for a larger ASBU.
Established in 2003 with eight officers and the support of the police the ASBU has already doubled in size. Since it opened it has dealt with over 1,600 cases tracking people accused of anti-social behaviour.
The unit's helpline receives 1,000 phone calls a month, with about nine per cent resulting in legal action.
Ms Homer said: "The caseload is unrealistic and impacts on quality of work and welfare of staff, as well as limiting scope for targeted and proactive intervention.
" The next phase of expansion will allow the unit to be restructured under three team leaders, each with a geographical responsibility.
"To make a substantial impact on anti- social behaviour in the city the service needs to find a balance between reactive and targeted work. Legal action will continue to be targeted at the most serious cases only."