Drugs including 68g of cannabis were found after a search.
The tree suddenly fell into the motorcycle's path, and the rider could not avoid it.
Police officers were conducting "proactive checks" at the time.
His clients included three offenders linked to the money laundering case.
The guide released his harness to lower the weight, which allowed for the customer to descend safely.
Monitor lizards kill prey using the venom secreted from glands in their jaws.
Three separate incidents are currently under investigation.
The judge said he would not be taking such applications as the case is in its early stages.
Both men later admitted their fault and apologised for causing disgrace.
Some netizens attributed it to Singaporeans' fast-paced lifestyle.