London Mayor said 'dangerously addictive ' machines prey on vulnerable . He also warned ministers to tackle 'clustering ' of betting shops in areas . Campaigners blame 'fixed odds ' terminals for a rise in problem gambling . Comment:
London Mayor said 'dangerously addictive ' machines prey on vulnerable . He also warned ministers to tackle 'clustering ' of betting shops in areas . Campaigners blame 'fixed odds ' terminals for a rise in problem gambling . Gamblers can stake £100 per spin in 33,000 betting shops across the UK .