Cooker switch used as a means of emergency switching

Is a cooker switch or cooker control unit required to be provided as means of emergency switching for an electric cooker?

Generally, cooker switches and cooker control units are provided as a local means of isolation and switching off for mechanical maintenance.
In most cases, the controls incorporated in a cooker can be used to remove the source of heat if danger arises.

However, a cooker switch or cooker control unit may also be provided as a means of emergency switching if the designer of the electrical installation decides that it is necessary, in which case it must be located so as to be readily accessible.