1. The system works best through the illegal betting markets of the Indian sub-continent, which operate a money credit system so there is no paper trail.
2. The Indian gambling system generally offers four markets: match odds, innings runs, brackets (which are runs scored in a certain number of overs such as 11-20) and lunch favourite (betting that a team will go on to win after lunch in a test or the innings break in a limited overs match). This shreds the theory anyone would take a bet, for example, that the third ball of a random over would be a no-ball.
3. Captains, opening batsmen and opening bowlers are ideal targets for match-fixers. Openers of either discipline are guaranteed to be involved at the start of an innings (and therefore in brackets of overs), and captains dictate fielding positions.
4. Watch out for odd fielding positions - the sort commentators might generously refer to as "bold" - such as long on, long off, third man or fine leg being brought into the circle outside powerplay overs.