CID have not changed with time. It has continued to remain like an early 2000 show. Crime has changed and so as audiance.
CID still survives but is loosing its audiance rapidly. The crime stories are not authentic and they make a shabby efforts to make it sound authentic ; this no more grips today's audiance.
CID shows less of drama otherwise it would be a big bore to see its episodes.
Somehow I feel it fails to grip today's mature audiance.I personally don't want to waste my time in watching CID and I would recommend others to see better crime episodes.