By Bradley Jolly Part of a popular coastal town has been branded the “drug capital of the south” as children reportedly avoid sitting on benches used by dealers. Tourists flock to the Boscombe area of Bournemouth, Dorset, for long seaside walks and to enjoy its beaches, though they’re unaware locals say the community faces a drug problem. Although it is near Sandbanks and Southbourne, where million-pound mansions aren’t uncommon, Boscombe has been labelled the “drug capital of the south”. Residents say it’s not unusual to see drug deals in broad daylight, and youngsters even know to avoid plon…