The fact that your colleague’s case went to court might help, but you can still be far from sure of the details of the offence from the minimal information you have.
The vast majority of speeding offences are dealt with by way of a fixed penalty (FP) - £60 and 3 points - but there are several reasons why a case may be dealt with in court instead:
1. The driver may have been unable to accept a fixed penalty because he was not in possession of his licence (for example it may be with the DVLA for amendment).
2. The driver may have declined the FP and opted for a court appearance either because he denied the offence (in which case a trial would be held) or he wanted the court to hear mitigation.
3. A fixed penalty may not have been offered because he already had nine points on his licence and a further offence would make him liable to a disqualification under the “totting up” rules.
4. A fixed penalty may not have been offered because he was driving too fast.
It’s of course very speculative but you can almost certainly rule out (1). In these cases the magistrates are usually minded to impose a fine equivalent to the fixed penalty. Not many people opt for a court appearance. Few plead not guilty and those intending to plead guilty usually know that the FP is “good value”, so (2) is probably unlikely. If your colleague is still driving you can probably rule out (3), although there is a possibility that he was successful with an “exceptional hardship” plea and so retained his licence. So it is a reasonable assumption that the case went to court because of (4) - he was driving too fast for a fixed penalty offer.
The Association of Chief Police Officers’ guidelines suggest that FPs should not be offered where the alleged speed exceeds 95mph in a 70 limit, 85 (in 60), 75 (50), 65 (40), 49 (30) and 34 (20). So if your assum