A 'no comment' interview can be an unenviable experience for the investigating officer.He has to make sure he has asked every question covering every angle of the case,which obviously can lead to technicalities arising if the interview prep isn't thorough.
On the flip side,if you choose not to answer in interview when given the opportunity,instead waiting till court,an adverse inference may be drawn leading to the jury etc. to come to their own conclusions as to why you chose to remain silent at that time.
Obviously,if you have nothing to hide and are genuinely innocent,imo,a no comment stance is a poor approach,however,if guilty........
And always get a solicitor,duty or otherwise