Referee Deceived in Deepest Darkest Peru

The following incident occurred in the first minute of the Sporting Cristal and Cesar Vallejoon match on Sunday 30 May 2010 in Peru. Video clips of the incident can be viewed here, here and here.

The X Factor
For optimal officiating, the referee must get his positioning right so that he can have a clear and unobstructed view of any potential contact between players.

[This camera view (above) demonstrates why this angle is unhelpful for identifying potential fouls.]

[The attacker from Cesar Vallejoon (white) is running away from goal and knows that he will have to get past the approaching defender from Sporting Cristal (blue) before having an opportunity to attack the goal.]

The above four freeze frames reveal what actually happened. The defending player (blue) is running behind and across the attacking player (white). There is no contact, but the attacking player falls down hoping to deceive the referee.
Hint: Referees should also consider the attacking player’s motivation for simulation (does the player have a clear run towards goal?) and the action of the player (is the action exaggerated and theatrical?)

The defending goalkeeper has an optimal view of the simulation. Had the referee been in an equally optimal position (i.e. directly opposite the goalkeeper on the other side of the two players), then it is likely the simulation would have been detected, with the attacking player receiving a caution and the defending team restarting with an indirect free kick.

However in this incident, the referee was deceived and the resulting penalty sealed the 0-1 victory to Cesar Vallejoon (white team).