This chapter shall apply to all contracts awarded by or entered into by the city, including, without limitation, purchases, contracts or leases for supplies, materials or equipment; contracts for professional and nonprofessional services; contracts for public works or construction projects; and contracts with insurance or surety companies issuing insurance policies or bonds for city public works or construction projects, city sponsored events or privately-sponsored events at city facilities. The provisions of this chapter are intended to determine in advance of submittal of bids or proposals on city contracts whether a person has the necessary qualifications, fitness, capacity, integrity and trustworthiness to perform city contracts. Nothing in this chapter shall limit the city's ability to determine prior to or at the time of contract award whether a bid or proposal is responsive to the city's solicitation for bids or proposals and whether the person submitting the bid or proposal has the requisite qualifications, fitness, capacity, trustworthiness and integrity needed to perform the contract.