ir ling ▁council ▁area . ▁ ▁Const itu ency ▁profile ▁and ▁voting ▁patterns ▁ ▁Const itu ency ▁profile ▁ ▁The ▁O ch il ▁and ▁South ▁Per th shire ▁constitu ency ▁covers ▁the ▁rural ▁south ▁of ▁the ▁Per th ▁and ▁Kin ross ▁council ▁area ▁south ▁of ▁the ▁River ▁T ay , ▁running ▁down ▁through ▁the ▁O ch il ▁Hills ▁into ▁the ▁more ▁industrial ▁C lack mann ans hire ▁council ▁area ▁to ▁the ▁south . ▁It ▁is ▁an ▁aff lu ent ▁constitu ency . ▁Agricult ure ▁and ▁tour ism ▁form ▁an ▁important ▁part ▁of ▁the ▁local ▁economy ▁in ▁the ▁north ▁of ▁the ▁constitu ency ▁in ▁southern ▁Per th ▁and ▁Kin ross - shire , ▁housing ▁aff lu ent ▁resort ▁towns ▁such ▁as ▁Auch ter ard er , ▁C rie ff ▁and ▁Kin ross . ▁C lack mann ans hire ▁is ▁better ▁known ▁for ▁its ▁light ▁industry ▁and ▁bre wer ies ▁d otted ▁along ▁the ▁course ▁of ▁the ▁River ▁For th ▁and ▁its ▁northern ▁trib ut ary ▁streams . ▁ ▁V oting ▁patterns ▁ ▁The ▁O ch il ▁and ▁South ▁Per th shire ▁constitu ency ▁was ▁formed ▁from ▁elements ▁of ▁the ▁old ▁O ch il ▁and ▁Per th ▁constitu encies . ▁Per th ▁was ▁tradition ally ▁a ▁strong ▁area ▁of ▁support ▁for ▁the ▁Conserv ative ▁Party ▁until ▁the ▁party ' s ▁w ipe out ▁in ▁Scotland ▁at ▁the ▁ 1 9 9 7 ▁general ▁election , ▁from ▁then ▁on wards ; ▁the ▁area ▁usually ▁voted ▁SN P . ▁O ch il ▁covered ▁the ▁count ies ▁of