The alternative is listening to the people running the elections at the grassroots level. They should be a mix of people representing various interests. There should also be international observers. If there is widespread fraud, the word will get out before the results. And you will hear about the fraud from everywhere, not just from a handful of weirdos or from top-level people of one of the parties.
Every sane electoral system starts from the assumption that the authorities responsible for the elections cannot be trusted. Instead of trusting the authorities, you trust a large number of people watching each other. Then everyone knows that if there is widespread fraud, it will be obvious, and hence the electoral system can be trusted.
Every sane electoral system starts from the assumption that the authorities responsible for the elections cannot be trusted. Instead of trusting the authorities, you trust a large number of people watching each other. Then everyone knows that if there is widespread fraud, it will be obvious, and hence the electoral system can be trusted.