Letta's acceptance of the leadership role is expected to limit the uncertainty that has gripped the nation since February, when elections left none of the candidates with enough support to form a government.

CNN: Italy poised to gain new government

Merchants may have to limit surcharges to the cost of card acceptance, for instance, or disclose surcharges to customers.

WSJ: Bank Fees Squeeze Retailers

It says sponsorship is subject to a 1% limit of the force's total annual income, and the acceptance of sponsorship for non-core police activities is intended to extend and enhance the force's service to the community.

BBC: Met Police got ?22.7m from sponsors, FOI request finds