The greatest dangers in England are from
the usual petty theft and pickpockets. Take
care on tubes, buses and transport and keep
your valuables well hidden and your bags
closed and out of reach of others. It should
also go without saying that you should not
accept drinks or food from strangers.
It is never adviseable to wander around
alone at night, especially for women, but
if you must the places to particularly avoid
would include railway stations, bus stops
and deserted areas particularly in inner
city industrial zones. However there are
usually night police patrolling transport
areas.
Try to also keep a note of your relevant
embassy or consulate in England and any
other emergency numbers you may require
for lost credit cards, travellers cheques,
health insurance etc.