conducted or sponsored by the City Ethics Commission prior to the election at which the candidate's name will appear on the ballot. (h) Accountability. The candidate and the treasurer shall maintain such detailed accounts, records, bills and receipts as are necessary to prepare campaign statements. The candidate and the treasurer shall retain the detailed accounts, records, bills and receipts for the periods specified in the Political Reform Act of 1974 as amended. Every candidate and committee shall make available on demand to any public officer having legal authority to enforce this section, details of checking and financial accounts of each committee controlled by the candidate and all records supporting such details. (i) Petty Cash Fund. Subsection (e) notwithstanding, a candidate, campaign treasurer and other designated agents authorized to issue checks on a campaign contribution checking account may disburse to the candidate or committee establishing the checking account an amount not greater than $50 per week to be used for petty cash purposes by the candidate or committee. (j) Assumed Name Contributions. No contribution shall be made, directly or indirectly, by any person or combination of persons, acting jointly in a name other than the name by which they are identified for legal purposes, nor in the name of another person or combination of persons. No person shall make a contribution in his, her or its name of anything belonging to another person or received from another person on the condition that it be used as a contribution. In the event it is discovered by a candidate or committee treasurer that a contribution has been received in violation of this subsection, the candidate or treasurer shall promptly pay the amount received in violation of this subsection to the City Treasurer for deposit in the General Fund of the City. (k) Campaign Expenditures - Uncontrolled by Candidate or Committee. Persons or organizations not subject to the control of a candidate or committee but who make independent expenditures for or against a candidate or committee shall indicate clearly on any material published, displayed or broadcast that it was not authorized by a candidate or a committee controlled by a candidate. (l) Recall Petition.