An electronic coin checker is disclosed, comprising a coin insert, a coin running track, in the region of which at least one checking device, for checking the coins, is arranged and a deflector. According to the result from the checking device, the deflector may be placed in a withdrawn position, opening the acceptance channel, or in an extended position, in which the coin is deflected into a return channel which ends in a return opening in the front region of the coin checker. The deflector comprises means for clamping which clamp a false coin introduced through the return opening in the extended state of the deflector, by means of withdrawing the deflector.