About the Tier 1 Investor Visa – https://www.gov.uk/tier-1-investor/overview
Eligibility of Tier 1 Investor Visa – https://www.gov.uk/tier-1-investor/eligibility
Including your Dependents – https://www.gov.uk/tier-1-investor/family-members
Investment and Tax
Tax on worldwide income – http://www.hmrc.gov.uk/international/remittance.htm